UBUNTU-CVE-2023-50269

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Source
https://ubuntu.com/security/CVE-2023-50269
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-50269.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2023-50269
Related
Published
2023-12-14T18:15:00Z
Modified
2025-06-02T17:22:38Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • 8.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

Squid is a caching proxy for the Web. Due to an Uncontrolled Recursion bug in versions 2.6 through 2.7.STABLE9, versions 3.1 through 5.9, and versions 6.0.1 through 6.5, Squid may be vulnerable to a Denial of Service attack against HTTP Request parsing. This problem allows a remote client to perform Denial of Service attack by sending a large X-Forwarded-For header when the followxforwarded_for feature is configured. This bug is fixed by Squid version 6.6. In addition, patches addressing this problem for the stable releases can be found in Squid's patch archives.

References

Affected packages

Ubuntu:Pro:16.04:LTS / squid3

Package

Name
squid3
Purl
pkg:deb/ubuntu/squid3@3.5.12-1ubuntu7.16+esm3?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.5.12-1ubuntu7.16+esm3

Affected versions

3.*

3.3.8-1ubuntu16
3.3.8-1ubuntu17
3.5.12-1ubuntu6
3.5.12-1ubuntu7
3.5.12-1ubuntu7.1
3.5.12-1ubuntu7.2
3.5.12-1ubuntu7.3
3.5.12-1ubuntu7.4
3.5.12-1ubuntu7.5
3.5.12-1ubuntu7.6
3.5.12-1ubuntu7.7
3.5.12-1ubuntu7.8
3.5.12-1ubuntu7.9
3.5.12-1ubuntu7.10
3.5.12-1ubuntu7.11
3.5.12-1ubuntu7.12
3.5.12-1ubuntu7.13
3.5.12-1ubuntu7.14
3.5.12-1ubuntu7.15
3.5.12-1ubuntu7.16
3.5.12-1ubuntu7.16+esm1
3.5.12-1ubuntu7.16+esm2

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_name": "squid",
            "binary_version": "3.5.12-1ubuntu7.16+esm3"
        },
        {
            "binary_name": "squid-cgi",
            "binary_version": "3.5.12-1ubuntu7.16+esm3"
        },
        {
            "binary_name": "squid-cgi-dbgsym",
            "binary_version": "3.5.12-1ubuntu7.16+esm3"
        },
        {
            "binary_name": "squid-common",
            "binary_version": "3.5.12-1ubuntu7.16+esm3"
        },
        {
            "binary_name": "squid-dbg",
            "binary_version": "3.5.12-1ubuntu7.16+esm3"
        },
        {
            "binary_name": "squid-dbgsym",
            "binary_version": "3.5.12-1ubuntu7.16+esm3"
        },
        {
            "binary_name": "squid-purge",
            "binary_version": "3.5.12-1ubuntu7.16+esm3"
        },
        {
            "binary_name": "squid-purge-dbgsym",
            "binary_version": "3.5.12-1ubuntu7.16+esm3"
        },
        {
            "binary_name": "squid3",
            "binary_version": "3.5.12-1ubuntu7.16+esm3"
        },
        {
            "binary_name": "squidclient",
            "binary_version": "3.5.12-1ubuntu7.16+esm3"
        },
        {
            "binary_name": "squidclient-dbgsym",
            "binary_version": "3.5.12-1ubuntu7.16+esm3"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / squid3

Package

Name
squid3
Purl
pkg:deb/ubuntu/squid3@3.5.27-1ubuntu1.14+esm2?arch=source&distro=esm-infra/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.5.27-1ubuntu1.14+esm2

Affected versions

3.*

3.5.23-5ubuntu1
3.5.23-5ubuntu2
3.5.27-1ubuntu1
3.5.27-1ubuntu1.1
3.5.27-1ubuntu1.2
3.5.27-1ubuntu1.3
3.5.27-1ubuntu1.4
3.5.27-1ubuntu1.5
3.5.27-1ubuntu1.6
3.5.27-1ubuntu1.7
3.5.27-1ubuntu1.8
3.5.27-1ubuntu1.9
3.5.27-1ubuntu1.10
3.5.27-1ubuntu1.11
3.5.27-1ubuntu1.12
3.5.27-1ubuntu1.13
3.5.27-1ubuntu1.14
3.5.27-1ubuntu1.14+esm1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_name": "squid",
            "binary_version": "3.5.27-1ubuntu1.14+esm2"
        },
        {
            "binary_name": "squid-cgi",
            "binary_version": "3.5.27-1ubuntu1.14+esm2"
        },
        {
            "binary_name": "squid-common",
            "binary_version": "3.5.27-1ubuntu1.14+esm2"
        },
        {
            "binary_name": "squid-dbg",
            "binary_version": "3.5.27-1ubuntu1.14+esm2"
        },
        {
            "binary_name": "squid-purge",
            "binary_version": "3.5.27-1ubuntu1.14+esm2"
        },
        {
            "binary_name": "squid3",
            "binary_version": "3.5.27-1ubuntu1.14+esm2"
        },
        {
            "binary_name": "squidclient",
            "binary_version": "3.5.27-1ubuntu1.14+esm2"
        }
    ]
}

Ubuntu:20.04:LTS / squid

Package

Name
squid
Purl
pkg:deb/ubuntu/squid@4.10-1ubuntu1.9?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.10-1ubuntu1.9

Affected versions

4.*

4.8-1ubuntu2
4.8-1ubuntu3
4.9-2ubuntu1
4.9-2ubuntu2
4.9-2ubuntu3
4.9-2ubuntu4
4.10-1ubuntu1
4.10-1ubuntu1.1
4.10-1ubuntu1.2
4.10-1ubuntu1.3
4.10-1ubuntu1.4
4.10-1ubuntu1.5
4.10-1ubuntu1.6
4.10-1ubuntu1.7
4.10-1ubuntu1.8

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_name": "squid",
            "binary_version": "4.10-1ubuntu1.9"
        },
        {
            "binary_name": "squid-cgi",
            "binary_version": "4.10-1ubuntu1.9"
        },
        {
            "binary_name": "squid-cgi-dbgsym",
            "binary_version": "4.10-1ubuntu1.9"
        },
        {
            "binary_name": "squid-common",
            "binary_version": "4.10-1ubuntu1.9"
        },
        {
            "binary_name": "squid-dbgsym",
            "binary_version": "4.10-1ubuntu1.9"
        },
        {
            "binary_name": "squid-purge",
            "binary_version": "4.10-1ubuntu1.9"
        },
        {
            "binary_name": "squid-purge-dbgsym",
            "binary_version": "4.10-1ubuntu1.9"
        },
        {
            "binary_name": "squidclient",
            "binary_version": "4.10-1ubuntu1.9"
        },
        {
            "binary_name": "squidclient-dbgsym",
            "binary_version": "4.10-1ubuntu1.9"
        }
    ]
}

Ubuntu:22.04:LTS / squid

Package

Name
squid
Purl
pkg:deb/ubuntu/squid@5.7-0ubuntu0.22.04.3?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.7-0ubuntu0.22.04.3

Affected versions

4.*

4.13-10ubuntu5

5.*

5.2-1ubuntu1
5.2-1ubuntu3
5.2-1ubuntu4
5.2-1ubuntu4.1
5.2-1ubuntu4.2
5.2-1ubuntu4.3
5.7-0ubuntu0.22.04.1
5.7-0ubuntu0.22.04.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_name": "squid",
            "binary_version": "5.7-0ubuntu0.22.04.3"
        },
        {
            "binary_name": "squid-cgi",
            "binary_version": "5.7-0ubuntu0.22.04.3"
        },
        {
            "binary_name": "squid-cgi-dbgsym",
            "binary_version": "5.7-0ubuntu0.22.04.3"
        },
        {
            "binary_name": "squid-common",
            "binary_version": "5.7-0ubuntu0.22.04.3"
        },
        {
            "binary_name": "squid-dbgsym",
            "binary_version": "5.7-0ubuntu0.22.04.3"
        },
        {
            "binary_name": "squid-openssl",
            "binary_version": "5.7-0ubuntu0.22.04.3"
        },
        {
            "binary_name": "squid-openssl-dbgsym",
            "binary_version": "5.7-0ubuntu0.22.04.3"
        },
        {
            "binary_name": "squid-purge",
            "binary_version": "5.7-0ubuntu0.22.04.3"
        },
        {
            "binary_name": "squid-purge-dbgsym",
            "binary_version": "5.7-0ubuntu0.22.04.3"
        },
        {
            "binary_name": "squidclient",
            "binary_version": "5.7-0ubuntu0.22.04.3"
        },
        {
            "binary_name": "squidclient-dbgsym",
            "binary_version": "5.7-0ubuntu0.22.04.3"
        }
    ]
}

Ubuntu:24.04:LTS / squid

Package

Name
squid
Purl
pkg:deb/ubuntu/squid@6.5-1ubuntu3?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.5-1ubuntu3

Affected versions

6.*

6.1-2ubuntu1
6.1-2ubuntu2
6.5-1ubuntu1
6.5-1ubuntu2

Ecosystem specific 

{
    "availability": "No subscription required",
    "ubuntu_priority": "medium",
    "binaries": [
        {
            "binary_name": "squid",
            "binary_version": "6.5-1ubuntu3"
        },
        {
            "binary_name": "squid-cgi",
            "binary_version": "6.5-1ubuntu3"
        },
        {
            "binary_name": "squid-cgi-dbgsym",
            "binary_version": "6.5-1ubuntu3"
        },
        {
            "binary_name": "squid-common",
            "binary_version": "6.5-1ubuntu3"
        },
        {
            "binary_name": "squid-dbgsym",
            "binary_version": "6.5-1ubuntu3"
        },
        {
            "binary_name": "squid-openssl",
            "binary_version": "6.5-1ubuntu3"
        },
        {
            "binary_name": "squid-openssl-dbgsym",
            "binary_version": "6.5-1ubuntu3"
        },
        {
            "binary_name": "squid-purge",
            "binary_version": "6.5-1ubuntu3"
        },
        {
            "binary_name": "squid-purge-dbgsym",
            "binary_version": "6.5-1ubuntu3"
        },
        {
            "binary_name": "squidclient",
            "binary_version": "6.5-1ubuntu3"
        },
        {
            "binary_name": "squidclient-dbgsym",
            "binary_version": "6.5-1ubuntu3"
        }
    ]
}