UBUNTU-CVE-2026-27171

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2026-27171
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-27171
Upstream
Published
2026-02-19T00:00:00Z
Modified
2026-02-24T00:51:46.312129Z
Severity
  • 2.9 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

zlib before 1.3.2 allows CPU consumption via crc32combine64 and crc32combine_gen64 because x2nmodp can do right shifts within a loop that has no termination condition.

References

Affected packages

Ubuntu:16.04:LTS
zsync

Package

Name
zsync
Purl
pkg:deb/ubuntu/zsync@0.6.2-1ubuntu1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.6.2-1ubuntu1

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "0.6.2-1ubuntu1",
            "binary_name": "zsync"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
Ubuntu:18.04:LTS
zlib

Package

Name
zlib
Purl
pkg:deb/ubuntu/zlib@1:1.2.11.dfsg-0ubuntu2.2?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1:1.*
1:1.2.11.dfsg-0ubuntu2
1:1.2.11.dfsg-0ubuntu2.1
1:1.2.11.dfsg-0ubuntu2.2

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "1:1.2.11.dfsg-0ubuntu2.2",
            "binary_name": "lib32z1"
        },
        {
            "binary_version": "1:1.2.11.dfsg-0ubuntu2.2",
            "binary_name": "lib32z1-dev"
        },
        {
            "binary_version": "1:1.2.11.dfsg-0ubuntu2.2",
            "binary_name": "lib64z1"
        },
        {
            "binary_version": "1:1.2.11.dfsg-0ubuntu2.2",
            "binary_name": "lib64z1-dev"
        },
        {
            "binary_version": "1:1.2.11.dfsg-0ubuntu2.2",
            "binary_name": "libx32z1"
        },
        {
            "binary_version": "1:1.2.11.dfsg-0ubuntu2.2",
            "binary_name": "libx32z1-dev"
        },
        {
            "binary_version": "1:1.2.11.dfsg-0ubuntu2.2",
            "binary_name": "zlib1g"
        },
        {
            "binary_version": "1:1.2.11.dfsg-0ubuntu2.2",
            "binary_name": "zlib1g-dev"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
zsync

Package

Name
zsync
Purl
pkg:deb/ubuntu/zsync@0.6.2-3ubuntu1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.6.2-2ubuntu1
0.6.2-3ubuntu1

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "0.6.2-3ubuntu1",
            "binary_name": "zsync"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
Ubuntu:20.04:LTS
rsync

Package

Name
rsync
Purl
pkg:deb/ubuntu/rsync@3.1.3-8ubuntu0.9?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.1.3-6
3.1.3-8
3.1.3-8ubuntu0.1
3.1.3-8ubuntu0.2
3.1.3-8ubuntu0.3
3.1.3-8ubuntu0.4
3.1.3-8ubuntu0.5
3.1.3-8ubuntu0.7
3.1.3-8ubuntu0.8
3.1.3-8ubuntu0.9

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "3.1.3-8ubuntu0.9",
            "binary_name": "rsync"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
zlib

Package

Name
zlib
Purl
pkg:deb/ubuntu/zlib@1:1.2.11.dfsg-2ubuntu1.5?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1:1.*
1:1.2.11.dfsg-1ubuntu3
1:1.2.11.dfsg-2ubuntu1
1:1.2.11.dfsg-2ubuntu1.1
1:1.2.11.dfsg-2ubuntu1.2
1:1.2.11.dfsg-2ubuntu1.3
1:1.2.11.dfsg-2ubuntu1.4
1:1.2.11.dfsg-2ubuntu1.5

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "1:1.2.11.dfsg-2ubuntu1.5",
            "binary_name": "lib32z1"
        },
        {
            "binary_version": "1:1.2.11.dfsg-2ubuntu1.5",
            "binary_name": "lib32z1-dev"
        },
        {
            "binary_version": "1:1.2.11.dfsg-2ubuntu1.5",
            "binary_name": "lib64z1"
        },
        {
            "binary_version": "1:1.2.11.dfsg-2ubuntu1.5",
            "binary_name": "lib64z1-dev"
        },
        {
            "binary_version": "1:1.2.11.dfsg-2ubuntu1.5",
            "binary_name": "libx32z1"
        },
        {
            "binary_version": "1:1.2.11.dfsg-2ubuntu1.5",
            "binary_name": "libx32z1-dev"
        },
        {
            "binary_version": "1:1.2.11.dfsg-2ubuntu1.5",
            "binary_name": "zlib1g"
        },
        {
            "binary_version": "1:1.2.11.dfsg-2ubuntu1.5",
            "binary_name": "zlib1g-dev"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
zsync

Package

Name
zsync
Purl
pkg:deb/ubuntu/zsync@0.6.2-3ubuntu1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.6.2-3ubuntu1

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "0.6.2-3ubuntu1",
            "binary_name": "zsync"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
Ubuntu:22.04:LTS
klibc

Package

Name
klibc
Purl
pkg:deb/ubuntu/klibc@2.0.10-4ubuntu0.2?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.0.8-6.1ubuntu2
2.0.10-3
2.0.10-4
2.0.10-4ubuntu0.1
2.0.10-4ubuntu0.2

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "2.0.10-4ubuntu0.2",
            "binary_name": "klibc-utils"
        },
        {
            "binary_version": "2.0.10-4ubuntu0.2",
            "binary_name": "libklibc"
        },
        {
            "binary_version": "2.0.10-4ubuntu0.2",
            "binary_name": "libklibc-dev"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
zlib

Package

Name
zlib
Purl
pkg:deb/ubuntu/zlib@1:1.2.11.dfsg-2ubuntu9.2?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1:1.*
1:1.2.11.dfsg-2ubuntu7
1:1.2.11.dfsg-2ubuntu9
1:1.2.11.dfsg-2ubuntu9.1
1:1.2.11.dfsg-2ubuntu9.2

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "1:1.2.11.dfsg-2ubuntu9.2",
            "binary_name": "lib32z1"
        },
        {
            "binary_version": "1:1.2.11.dfsg-2ubuntu9.2",
            "binary_name": "lib32z1-dev"
        },
        {
            "binary_version": "1:1.2.11.dfsg-2ubuntu9.2",
            "binary_name": "lib64z1"
        },
        {
            "binary_version": "1:1.2.11.dfsg-2ubuntu9.2",
            "binary_name": "lib64z1-dev"
        },
        {
            "binary_version": "1:1.2.11.dfsg-2ubuntu9.2",
            "binary_name": "libx32z1"
        },
        {
            "binary_version": "1:1.2.11.dfsg-2ubuntu9.2",
            "binary_name": "libx32z1-dev"
        },
        {
            "binary_version": "1:1.2.11.dfsg-2ubuntu9.2",
            "binary_name": "zlib1g"
        },
        {
            "binary_version": "1:1.2.11.dfsg-2ubuntu9.2",
            "binary_name": "zlib1g-dev"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
zsync

Package

Name
zsync
Purl
pkg:deb/ubuntu/zsync@0.6.2-3ubuntu1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.6.2-3ubuntu1

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "0.6.2-3ubuntu1",
            "binary_name": "zsync"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
Ubuntu:24.04:LTS
klibc

Package

Name
klibc
Purl
pkg:deb/ubuntu/klibc@2.0.13-4ubuntu0.2?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.0.13-1
2.0.13-2
2.0.13-2ubuntu1
2.0.13-4
2.0.13-4ubuntu0.1
2.0.13-4ubuntu0.2

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "2.0.13-4ubuntu0.2",
            "binary_name": "klibc-utils"
        },
        {
            "binary_version": "2.0.13-4ubuntu0.2",
            "binary_name": "libklibc"
        },
        {
            "binary_version": "2.0.13-4ubuntu0.2",
            "binary_name": "libklibc-dev"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
zlib

Package

Name
zlib
Purl
pkg:deb/ubuntu/zlib@1:1.3.dfsg-3.1ubuntu2.1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1:1.*
1:1.2.13.dfsg-1ubuntu5
1:1.3.dfsg-3ubuntu1
1:1.3.dfsg-3.1ubuntu1
1:1.3.dfsg-3.1ubuntu2
1:1.3.dfsg-3.1ubuntu2.1

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "1:1.3.dfsg-3.1ubuntu2.1",
            "binary_name": "lib32z1"
        },
        {
            "binary_version": "1:1.3.dfsg-3.1ubuntu2.1",
            "binary_name": "lib32z1-dev"
        },
        {
            "binary_version": "1:1.3.dfsg-3.1ubuntu2.1",
            "binary_name": "lib64z1"
        },
        {
            "binary_version": "1:1.3.dfsg-3.1ubuntu2.1",
            "binary_name": "lib64z1-dev"
        },
        {
            "binary_version": "1:1.3.dfsg-3.1ubuntu2.1",
            "binary_name": "libminizip-dev"
        },
        {
            "binary_version": "1:1.3.dfsg-3.1ubuntu2.1",
            "binary_name": "libminizip1t64"
        },
        {
            "binary_version": "1:1.3.dfsg-3.1ubuntu2.1",
            "binary_name": "libx32z1"
        },
        {
            "binary_version": "1:1.3.dfsg-3.1ubuntu2.1",
            "binary_name": "libx32z1-dev"
        },
        {
            "binary_version": "1:1.3.dfsg-3.1ubuntu2.1",
            "binary_name": "minizip"
        },
        {
            "binary_version": "1:1.3.dfsg-3.1ubuntu2.1",
            "binary_name": "zlib1g"
        },
        {
            "binary_version": "1:1.3.dfsg-3.1ubuntu2.1",
            "binary_name": "zlib1g-dev"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
zsync

Package

Name
zsync
Purl
pkg:deb/ubuntu/zsync@0.6.2-5build1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.6.2-5
0.6.2-5build1

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "0.6.2-5build1",
            "binary_name": "zsync"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
Ubuntu:25.10
klibc

Package

Name
klibc
Purl
pkg:deb/ubuntu/klibc@2.0.14-1ubuntu1.1?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.0.13-4ubuntu1
2.0.14-1ubuntu1
2.0.14-1ubuntu1.1

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "2.0.14-1ubuntu1.1",
            "binary_name": "klibc-utils"
        },
        {
            "binary_version": "2.0.14-1ubuntu1.1",
            "binary_name": "libklibc"
        },
        {
            "binary_version": "2.0.14-1ubuntu1.1",
            "binary_name": "libklibc-dev"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
zlib

Package

Name
zlib
Purl
pkg:deb/ubuntu/zlib@1:1.3.dfsg+really1.3.1-1ubuntu2?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1:1.*
1:1.3.dfsg+really1.3.1-1ubuntu1
1:1.3.dfsg+really1.3.1-1ubuntu2

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "1:1.3.dfsg+really1.3.1-1ubuntu2",
            "binary_name": "lib32z1"
        },
        {
            "binary_version": "1:1.3.dfsg+really1.3.1-1ubuntu2",
            "binary_name": "lib32z1-dev"
        },
        {
            "binary_version": "1:1.3.dfsg+really1.3.1-1ubuntu2",
            "binary_name": "lib64z1"
        },
        {
            "binary_version": "1:1.3.dfsg+really1.3.1-1ubuntu2",
            "binary_name": "lib64z1-dev"
        },
        {
            "binary_version": "1:1.3.dfsg+really1.3.1-1ubuntu2",
            "binary_name": "libminizip-dev"
        },
        {
            "binary_version": "1:1.3.dfsg+really1.3.1-1ubuntu2",
            "binary_name": "libminizip1t64"
        },
        {
            "binary_version": "1:1.3.dfsg+really1.3.1-1ubuntu2",
            "binary_name": "libx32z1"
        },
        {
            "binary_version": "1:1.3.dfsg+really1.3.1-1ubuntu2",
            "binary_name": "libx32z1-dev"
        },
        {
            "binary_version": "1:1.3.dfsg+really1.3.1-1ubuntu2",
            "binary_name": "minizip"
        },
        {
            "binary_version": "1:1.3.dfsg+really1.3.1-1ubuntu2",
            "binary_name": "zlib1g"
        },
        {
            "binary_version": "1:1.3.dfsg+really1.3.1-1ubuntu2",
            "binary_name": "zlib1g-dev"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
zsync

Package

Name
zsync
Purl
pkg:deb/ubuntu/zsync@0.6.2-8?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

0.*
0.6.2-7ubuntu1
0.6.2-8

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "0.6.2-8",
            "binary_name": "zsync"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
Ubuntu:Pro:14.04:LTS
klibc

Package

Name
klibc
Purl
pkg:deb/ubuntu/klibc@2.0.3-0ubuntu1.14.04.3+esm4?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.0.1-3.1ubuntu2
2.0.2-1ubuntu1
2.0.2-1ubuntu2
2.0.3-0ubuntu1
2.0.3-0ubuntu1.14.04.1
2.0.3-0ubuntu1.14.04.2
2.0.3-0ubuntu1.14.04.3
2.0.3-0ubuntu1.14.04.3+esm2
2.0.3-0ubuntu1.14.04.3+esm3
2.0.3-0ubuntu1.14.04.3+esm4

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "2.0.3-0ubuntu1.14.04.3+esm4",
            "binary_name": "klibc-utils"
        },
        {
            "binary_version": "2.0.3-0ubuntu1.14.04.3+esm4",
            "binary_name": "libklibc"
        },
        {
            "binary_version": "2.0.3-0ubuntu1.14.04.3+esm4",
            "binary_name": "libklibc-dev"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
zlib

Package

Name
zlib
Purl
pkg:deb/ubuntu/zlib@1:1.2.8.dfsg-1ubuntu1.1+esm3?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1:1.*
1:1.2.8.dfsg-1ubuntu1
1:1.2.8.dfsg-1ubuntu1.1
1:1.2.8.dfsg-1ubuntu1.1+esm1
1:1.2.8.dfsg-1ubuntu1.1+esm2
1:1.2.8.dfsg-1ubuntu1.1+esm3

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "1:1.2.8.dfsg-1ubuntu1.1+esm3",
            "binary_name": "lib32z1"
        },
        {
            "binary_version": "1:1.2.8.dfsg-1ubuntu1.1+esm3",
            "binary_name": "lib32z1-dev"
        },
        {
            "binary_version": "1:1.2.8.dfsg-1ubuntu1.1+esm3",
            "binary_name": "lib64z1"
        },
        {
            "binary_version": "1:1.2.8.dfsg-1ubuntu1.1+esm3",
            "binary_name": "lib64z1-dev"
        },
        {
            "binary_version": "1:1.2.8.dfsg-1ubuntu1.1+esm3",
            "binary_name": "libx32z1"
        },
        {
            "binary_version": "1:1.2.8.dfsg-1ubuntu1.1+esm3",
            "binary_name": "libx32z1-dev"
        },
        {
            "binary_version": "1:1.2.8.dfsg-1ubuntu1.1+esm3",
            "binary_name": "zlib-bin"
        },
        {
            "binary_version": "1:1.2.8.dfsg-1ubuntu1.1+esm3",
            "binary_name": "zlib1g"
        },
        {
            "binary_version": "1:1.2.8.dfsg-1ubuntu1.1+esm3",
            "binary_name": "zlib1g-dev"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
Ubuntu:Pro:16.04:LTS
klibc

Package

Name
klibc
Purl
pkg:deb/ubuntu/klibc@2.0.4-8ubuntu1.16.04.4+esm3?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.0.3-0ubuntu1
2.0.4-4
2.0.4-6
2.0.4-7
2.0.4-8
2.0.4-8ubuntu1
2.0.4-8ubuntu1.16.04.1
2.0.4-8ubuntu1.16.04.2
2.0.4-8ubuntu1.16.04.3
2.0.4-8ubuntu1.16.04.4
2.0.4-8ubuntu1.16.04.4+esm1
2.0.4-8ubuntu1.16.04.4+esm2
2.0.4-8ubuntu1.16.04.4+esm3

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "2.0.4-8ubuntu1.16.04.4+esm3",
            "binary_name": "klibc-utils"
        },
        {
            "binary_version": "2.0.4-8ubuntu1.16.04.4+esm3",
            "binary_name": "libklibc"
        },
        {
            "binary_version": "2.0.4-8ubuntu1.16.04.4+esm3",
            "binary_name": "libklibc-dev"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
rsync

Package

Name
rsync
Purl
pkg:deb/ubuntu/rsync@3.1.1-3ubuntu1.3+esm4?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.1.1-3
3.1.1-3ubuntu1
3.1.1-3ubuntu1.1
3.1.1-3ubuntu1.2
3.1.1-3ubuntu1.3
3.1.1-3ubuntu1.3+esm1
3.1.1-3ubuntu1.3+esm2
3.1.1-3ubuntu1.3+esm3
3.1.1-3ubuntu1.3+esm4

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "3.1.1-3ubuntu1.3+esm4",
            "binary_name": "rsync"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
zlib

Package

Name
zlib
Purl
pkg:deb/ubuntu/zlib@1:1.2.8.dfsg-2ubuntu4.3+esm2?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1:1.*
1:1.2.8.dfsg-2ubuntu4
1:1.2.8.dfsg-2ubuntu4.1
1:1.2.8.dfsg-2ubuntu4.3
1:1.2.8.dfsg-2ubuntu4.3+esm1
1:1.2.8.dfsg-2ubuntu4.3+esm2

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "1:1.2.8.dfsg-2ubuntu4.3+esm2",
            "binary_name": "lib32z1"
        },
        {
            "binary_version": "1:1.2.8.dfsg-2ubuntu4.3+esm2",
            "binary_name": "lib32z1-dev"
        },
        {
            "binary_version": "1:1.2.8.dfsg-2ubuntu4.3+esm2",
            "binary_name": "lib64z1"
        },
        {
            "binary_version": "1:1.2.8.dfsg-2ubuntu4.3+esm2",
            "binary_name": "lib64z1-dev"
        },
        {
            "binary_version": "1:1.2.8.dfsg-2ubuntu4.3+esm2",
            "binary_name": "libx32z1"
        },
        {
            "binary_version": "1:1.2.8.dfsg-2ubuntu4.3+esm2",
            "binary_name": "libx32z1-dev"
        },
        {
            "binary_version": "1:1.2.8.dfsg-2ubuntu4.3+esm2",
            "binary_name": "zlib1g"
        },
        {
            "binary_version": "1:1.2.8.dfsg-2ubuntu4.3+esm2",
            "binary_name": "zlib1g-dev"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
Ubuntu:Pro:18.04:LTS
klibc

Package

Name
klibc
Purl
pkg:deb/ubuntu/klibc@2.0.4-9ubuntu2.2+esm2?arch=source&distro=esm-infra/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.0.4-9ubuntu1
2.0.4-9ubuntu2
2.0.4-9ubuntu2.1
2.0.4-9ubuntu2.2
2.0.4-9ubuntu2.2+esm1
2.0.4-9ubuntu2.2+esm2

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "2.0.4-9ubuntu2.2+esm2",
            "binary_name": "klibc-utils"
        },
        {
            "binary_version": "2.0.4-9ubuntu2.2+esm2",
            "binary_name": "libklibc"
        },
        {
            "binary_version": "2.0.4-9ubuntu2.2+esm2",
            "binary_name": "libklibc-dev"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
rsync

Package

Name
rsync
Purl
pkg:deb/ubuntu/rsync@3.1.2-2.1ubuntu1.6+esm2?arch=source&distro=esm-infra/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.1.2-2
3.1.2-2.1
3.1.2-2.1ubuntu1
3.1.2-2.1ubuntu1.1
3.1.2-2.1ubuntu1.2
3.1.2-2.1ubuntu1.3
3.1.2-2.1ubuntu1.4
3.1.2-2.1ubuntu1.5
3.1.2-2.1ubuntu1.6
3.1.2-2.1ubuntu1.6+esm1
3.1.2-2.1ubuntu1.6+esm2

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "3.1.2-2.1ubuntu1.6+esm2",
            "binary_name": "rsync"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"
Ubuntu:Pro:20.04:LTS
klibc

Package

Name
klibc
Purl
pkg:deb/ubuntu/klibc@2.0.7-1ubuntu5.2+esm1?arch=source&distro=esm-infra/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*
2.0.6-1ubuntu1
2.0.6-1ubuntu2
2.0.7-1ubuntu1
2.0.7-1ubuntu3
2.0.7-1ubuntu4
2.0.7-1ubuntu5
2.0.7-1ubuntu5.1
2.0.7-1ubuntu5.2
2.0.7-1ubuntu5.2+esm1

Ecosystem specific 

{
    "priority_reason": "Resource consumption via API misuse only",
    "binaries": [
        {
            "binary_version": "2.0.7-1ubuntu5.2+esm1",
            "binary_name": "klibc-utils"
        },
        {
            "binary_version": "2.0.7-1ubuntu5.2+esm1",
            "binary_name": "libklibc"
        },
        {
            "binary_version": "2.0.7-1ubuntu5.2+esm1",
            "binary_name": "libklibc-dev"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-27171.json"