UBUNTU-CVE-2021-43980

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Source
https://ubuntu.com/security/CVE-2021-43980
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-43980.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-43980
Upstream
Published
2022-09-28T14:15:00Z
Modified
2025-10-24T04:50:37Z
Severity
  • 3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
  • 3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The simplified implementation of blocking reads and writes introduced in Tomcat 10 and back-ported to Tomcat 9.0.47 onwards exposed a long standing (but extremely hard to trigger) concurrency bug in Apache Tomcat 10.1.0 to 10.1.0-M12, 10.0.0-M1 to 10.0.18, 9.0.0-M1 to 9.0.60 and 8.5.0 to 8.5.77 that could cause client connections to share an Http11Processor instance resulting in responses, or part responses, to be received by the wrong client.

References

Affected packages

Ubuntu:16.04:LTS
tomcat6

Package

Name
tomcat6
Purl
pkg:deb/ubuntu/tomcat6@6.0.45+dfsg-1ubuntu0.2?arch=source&distro=xenial

Affected ranges

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

Affected versions

6.*
6.0.41-4
6.0.45+dfsg-1
6.0.45+dfsg-1ubuntu0.1
6.0.45+dfsg-1ubuntu0.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libservlet2.5-java",
            "binary_version": "6.0.45+dfsg-1ubuntu0.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-43980.json"
Ubuntu:Pro:14.04:LTS
tomcat6

Package

Name
tomcat6
Purl
pkg:deb/ubuntu/tomcat6@6.0.39-1ubuntu0.1+esm2?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

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

Affected versions

6.*
6.0.37-1
6.0.39-1
6.0.39-1ubuntu0.1
6.0.39-1ubuntu0.1+esm1
6.0.39-1ubuntu0.1+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libservlet2.4-java",
            "binary_version": "6.0.39-1ubuntu0.1+esm2"
        },
        {
            "binary_name": "libservlet2.5-java",
            "binary_version": "6.0.39-1ubuntu0.1+esm2"
        },
        {
            "binary_name": "libtomcat6-java",
            "binary_version": "6.0.39-1ubuntu0.1+esm2"
        },
        {
            "binary_name": "tomcat6",
            "binary_version": "6.0.39-1ubuntu0.1+esm2"
        },
        {
            "binary_name": "tomcat6-admin",
            "binary_version": "6.0.39-1ubuntu0.1+esm2"
        },
        {
            "binary_name": "tomcat6-common",
            "binary_version": "6.0.39-1ubuntu0.1+esm2"
        },
        {
            "binary_name": "tomcat6-docs",
            "binary_version": "6.0.39-1ubuntu0.1+esm2"
        },
        {
            "binary_name": "tomcat6-examples",
            "binary_version": "6.0.39-1ubuntu0.1+esm2"
        },
        {
            "binary_name": "tomcat6-extras",
            "binary_version": "6.0.39-1ubuntu0.1+esm2"
        },
        {
            "binary_name": "tomcat6-user",
            "binary_version": "6.0.39-1ubuntu0.1+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-43980.json"
tomcat7

Package

Name
tomcat7
Purl
pkg:deb/ubuntu/tomcat7@7.0.52-1ubuntu0.16+esm1?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

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

Affected versions

7.*
7.0.42-1
7.0.47-1
7.0.50-1
7.0.52-1
7.0.52-1ubuntu0.1
7.0.52-1ubuntu0.3
7.0.52-1ubuntu0.6
7.0.52-1ubuntu0.7
7.0.52-1ubuntu0.8
7.0.52-1ubuntu0.9
7.0.52-1ubuntu0.10
7.0.52-1ubuntu0.11
7.0.52-1ubuntu0.13
7.0.52-1ubuntu0.14
7.0.52-1ubuntu0.15
7.0.52-1ubuntu0.16
7.0.52-1ubuntu0.16+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libservlet3.0-java",
            "binary_version": "7.0.52-1ubuntu0.16+esm1"
        },
        {
            "binary_name": "libtomcat7-java",
            "binary_version": "7.0.52-1ubuntu0.16+esm1"
        },
        {
            "binary_name": "tomcat7",
            "binary_version": "7.0.52-1ubuntu0.16+esm1"
        },
        {
            "binary_name": "tomcat7-admin",
            "binary_version": "7.0.52-1ubuntu0.16+esm1"
        },
        {
            "binary_name": "tomcat7-common",
            "binary_version": "7.0.52-1ubuntu0.16+esm1"
        },
        {
            "binary_name": "tomcat7-docs",
            "binary_version": "7.0.52-1ubuntu0.16+esm1"
        },
        {
            "binary_name": "tomcat7-examples",
            "binary_version": "7.0.52-1ubuntu0.16+esm1"
        },
        {
            "binary_name": "tomcat7-user",
            "binary_version": "7.0.52-1ubuntu0.16+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-43980.json"
Ubuntu:Pro:16.04:LTS
tomcat8

Package

Name
tomcat8
Purl
pkg:deb/ubuntu/tomcat8@8.0.32-1ubuntu1.13+esm1?arch=source&distro=esm-infra/xenial

Affected ranges

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

Affected versions

8.*
8.0.26-1
8.0.28-1
8.0.30-1
8.0.32-1
8.0.32-1ubuntu1
8.0.32-1ubuntu1.1
8.0.32-1ubuntu1.2
8.0.32-1ubuntu1.3
8.0.32-1ubuntu1.4
8.0.32-1ubuntu1.5
8.0.32-1ubuntu1.6
8.0.32-1ubuntu1.7
8.0.32-1ubuntu1.8
8.0.32-1ubuntu1.9
8.0.32-1ubuntu1.10
8.0.32-1ubuntu1.11
8.0.32-1ubuntu1.13
8.0.32-1ubuntu1.13+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libservlet3.1-java",
            "binary_version": "8.0.32-1ubuntu1.13+esm1"
        },
        {
            "binary_name": "libtomcat8-java",
            "binary_version": "8.0.32-1ubuntu1.13+esm1"
        },
        {
            "binary_name": "tomcat8",
            "binary_version": "8.0.32-1ubuntu1.13+esm1"
        },
        {
            "binary_name": "tomcat8-admin",
            "binary_version": "8.0.32-1ubuntu1.13+esm1"
        },
        {
            "binary_name": "tomcat8-common",
            "binary_version": "8.0.32-1ubuntu1.13+esm1"
        },
        {
            "binary_name": "tomcat8-docs",
            "binary_version": "8.0.32-1ubuntu1.13+esm1"
        },
        {
            "binary_name": "tomcat8-examples",
            "binary_version": "8.0.32-1ubuntu1.13+esm1"
        },
        {
            "binary_name": "tomcat8-user",
            "binary_version": "8.0.32-1ubuntu1.13+esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-43980.json"
tomcat7

Package

Name
tomcat7
Purl
pkg:deb/ubuntu/tomcat7@7.0.68-1ubuntu0.4+esm3?arch=source&distro=esm-apps/xenial

Affected ranges

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

Affected versions

7.*
7.0.64-1
7.0.68-1
7.0.68-1ubuntu0.1
7.0.68-1ubuntu0.3
7.0.68-1ubuntu0.4
7.0.68-1ubuntu0.4+esm1
7.0.68-1ubuntu0.4+esm2
7.0.68-1ubuntu0.4+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libservlet3.0-java",
            "binary_version": "7.0.68-1ubuntu0.4+esm3"
        },
        {
            "binary_name": "libtomcat7-java",
            "binary_version": "7.0.68-1ubuntu0.4+esm3"
        },
        {
            "binary_name": "tomcat7",
            "binary_version": "7.0.68-1ubuntu0.4+esm3"
        },
        {
            "binary_name": "tomcat7-admin",
            "binary_version": "7.0.68-1ubuntu0.4+esm3"
        },
        {
            "binary_name": "tomcat7-common",
            "binary_version": "7.0.68-1ubuntu0.4+esm3"
        },
        {
            "binary_name": "tomcat7-docs",
            "binary_version": "7.0.68-1ubuntu0.4+esm3"
        },
        {
            "binary_name": "tomcat7-examples",
            "binary_version": "7.0.68-1ubuntu0.4+esm3"
        },
        {
            "binary_name": "tomcat7-user",
            "binary_version": "7.0.68-1ubuntu0.4+esm3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-43980.json"
Ubuntu:Pro:18.04:LTS
tomcat7

Package

Name
tomcat7
Purl
pkg:deb/ubuntu/tomcat7@7.0.78-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

7.*
7.0.78-1
7.0.78-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libservlet3.0-java",
            "binary_version": "7.0.78-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-43980.json"
tomcat8

Package

Name
tomcat8
Purl
pkg:deb/ubuntu/tomcat8@8.5.39-1ubuntu1~18.04.3+esm5?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

8.*
8.5.21-1ubuntu1
8.5.29-1
8.5.30-1
8.5.30-1ubuntu1
8.5.30-1ubuntu1.2
8.5.30-1ubuntu1.3
8.5.30-1ubuntu1.4
8.5.39-1ubuntu1~18.04.1
8.5.39-1ubuntu1~18.04.2
8.5.39-1ubuntu1~18.04.3
8.5.39-1ubuntu1~18.04.3+esm1
8.5.39-1ubuntu1~18.04.3+esm2
8.5.39-1ubuntu1~18.04.3+esm3
8.5.39-1ubuntu1~18.04.3+esm4
8.5.39-1ubuntu1~18.04.3+esm5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libtomcat8-embed-java",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5"
        },
        {
            "binary_name": "libtomcat8-java",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5"
        },
        {
            "binary_name": "tomcat8",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5"
        },
        {
            "binary_name": "tomcat8-admin",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5"
        },
        {
            "binary_name": "tomcat8-common",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5"
        },
        {
            "binary_name": "tomcat8-docs",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5"
        },
        {
            "binary_name": "tomcat8-examples",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5"
        },
        {
            "binary_name": "tomcat8-user",
            "binary_version": "8.5.39-1ubuntu1~18.04.3+esm5"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-43980.json"
tomcat9

Package

Name
tomcat9
Purl
pkg:deb/ubuntu/tomcat9@9.0.16-3ubuntu0.18.04.2+esm7?arch=source&distro=esm-apps/bionic

Affected ranges

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

Affected versions

9.*
9.0.16-3~18.04.1
9.0.16-3ubuntu0.18.04.1
9.0.16-3ubuntu0.18.04.2
9.0.16-3ubuntu0.18.04.2+esm1
9.0.16-3ubuntu0.18.04.2+esm2
9.0.16-3ubuntu0.18.04.2+esm3
9.0.16-3ubuntu0.18.04.2+esm4
9.0.16-3ubuntu0.18.04.2+esm5
9.0.16-3ubuntu0.18.04.2+esm6
9.0.16-3ubuntu0.18.04.2+esm7

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libtomcat9-embed-java",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7"
        },
        {
            "binary_name": "libtomcat9-java",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7"
        },
        {
            "binary_name": "tomcat9",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7"
        },
        {
            "binary_name": "tomcat9-admin",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7"
        },
        {
            "binary_name": "tomcat9-common",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7"
        },
        {
            "binary_name": "tomcat9-docs",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7"
        },
        {
            "binary_name": "tomcat9-examples",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7"
        },
        {
            "binary_name": "tomcat9-user",
            "binary_version": "9.0.16-3ubuntu0.18.04.2+esm7"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-43980.json"
Ubuntu:Pro:20.04:LTS
tomcat9

Package

Name
tomcat9
Purl
pkg:deb/ubuntu/tomcat9@9.0.31-1ubuntu0.9+esm2?arch=source&distro=esm-apps/focal

Affected ranges

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

Affected versions

9.*
9.0.24-1
9.0.27-1
9.0.31-1
9.0.31-1ubuntu0.1
9.0.31-1ubuntu0.2
9.0.31-1ubuntu0.3
9.0.31-1ubuntu0.4
9.0.31-1ubuntu0.5
9.0.31-1ubuntu0.6
9.0.31-1ubuntu0.7
9.0.31-1ubuntu0.8
9.0.31-1ubuntu0.9
9.0.31-1ubuntu0.9+esm1
9.0.31-1ubuntu0.9+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libtomcat9-embed-java",
            "binary_version": "9.0.31-1ubuntu0.9+esm2"
        },
        {
            "binary_name": "libtomcat9-java",
            "binary_version": "9.0.31-1ubuntu0.9+esm2"
        },
        {
            "binary_name": "tomcat9",
            "binary_version": "9.0.31-1ubuntu0.9+esm2"
        },
        {
            "binary_name": "tomcat9-admin",
            "binary_version": "9.0.31-1ubuntu0.9+esm2"
        },
        {
            "binary_name": "tomcat9-common",
            "binary_version": "9.0.31-1ubuntu0.9+esm2"
        },
        {
            "binary_name": "tomcat9-docs",
            "binary_version": "9.0.31-1ubuntu0.9+esm2"
        },
        {
            "binary_name": "tomcat9-examples",
            "binary_version": "9.0.31-1ubuntu0.9+esm2"
        },
        {
            "binary_name": "tomcat9-user",
            "binary_version": "9.0.31-1ubuntu0.9+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-43980.json"
Ubuntu:Pro:22.04:LTS
tomcat9

Package

Name
tomcat9
Purl
pkg:deb/ubuntu/tomcat9@9.0.58-1ubuntu0.2+esm3?arch=source&distro=esm-apps/jammy

Affected ranges

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

Affected versions

9.*
9.0.43-3
9.0.54-1
9.0.55-1
9.0.58-1
9.0.58-1ubuntu0.1
9.0.58-1ubuntu0.1+esm1
9.0.58-1ubuntu0.1+esm2
9.0.58-1ubuntu0.1+esm3
9.0.58-1ubuntu0.1+esm4
9.0.58-1ubuntu0.2
9.0.58-1ubuntu0.2+esm1
9.0.58-1ubuntu0.2+esm2
9.0.58-1ubuntu0.2+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libtomcat9-embed-java",
            "binary_version": "9.0.58-1ubuntu0.2+esm3"
        },
        {
            "binary_name": "libtomcat9-java",
            "binary_version": "9.0.58-1ubuntu0.2+esm3"
        },
        {
            "binary_name": "tomcat9",
            "binary_version": "9.0.58-1ubuntu0.2+esm3"
        },
        {
            "binary_name": "tomcat9-admin",
            "binary_version": "9.0.58-1ubuntu0.2+esm3"
        },
        {
            "binary_name": "tomcat9-common",
            "binary_version": "9.0.58-1ubuntu0.2+esm3"
        },
        {
            "binary_name": "tomcat9-docs",
            "binary_version": "9.0.58-1ubuntu0.2+esm3"
        },
        {
            "binary_name": "tomcat9-examples",
            "binary_version": "9.0.58-1ubuntu0.2+esm3"
        },
        {
            "binary_name": "tomcat9-user",
            "binary_version": "9.0.58-1ubuntu0.2+esm3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-43980.json"