USN-5570-2

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/notices/USN-5570-2
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5570-2.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-5570-2
Upstream
Related
Published
2022-10-17T18:37:50.426292Z
Modified
2025-07-16T08:55:52.567558Z
Summary
zlib vulnerability
Details

USN-5570-1 fixed a vulnerability in zlib. This update provides the corresponding update for Ubuntu 22.04 LTS and Ubuntu 20.04 LTS.

Original advisory details:

Evgeny Legerov discovered that zlib incorrectly handled memory when performing certain inflate operations. An attacker could use this issue to cause zlib to crash, resulting in a denial of service, or possibly execute arbitrary code.

References

Affected packages

Ubuntu:20.04:LTS / 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
Fixed
1:1.2.11.dfsg-2ubuntu1.5

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "lib32z1",
            "binary_version": "1:1.2.11.dfsg-2ubuntu1.5"
        },
        {
            "binary_name": "lib32z1-dbgsym",
            "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-dbgsym",
            "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-dbgsym",
            "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-dbgsym",
            "binary_version": "1:1.2.11.dfsg-2ubuntu1.5"
        },
        {
            "binary_name": "zlib1g-dev",
            "binary_version": "1:1.2.11.dfsg-2ubuntu1.5"
        },
        {
            "binary_name": "zlib1g-udeb",
            "binary_version": "1:1.2.11.dfsg-2ubuntu1.5"
        }
    ]
}

Ubuntu:22.04:LTS / 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
Fixed
1:1.2.11.dfsg-2ubuntu9.2

Affected versions

1:1.*

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "lib32z1",
            "binary_version": "1:1.2.11.dfsg-2ubuntu9.2"
        },
        {
            "binary_name": "lib32z1-dbgsym",
            "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-dbgsym",
            "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-dbgsym",
            "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-dbgsym",
            "binary_version": "1:1.2.11.dfsg-2ubuntu9.2"
        },
        {
            "binary_name": "zlib1g-dev",
            "binary_version": "1:1.2.11.dfsg-2ubuntu9.2"
        }
    ]
}