UBUNTU-CVE-2021-28116

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Source
https://ubuntu.com/security/CVE-2021-28116
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-28116.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-28116
Upstream
Downstream
Related
Published
2021-03-09T22:15:00Z
Modified
2025-11-05T04:50:00Z
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
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

Squid through 4.14 and 5.x through 5.0.5, in some configurations, allows information disclosure because of an out-of-bounds read in WCCP protocol data. This can be leveraged as part of a chain for remote code execution as nobody.

References

Affected packages

Ubuntu:Pro:16.04:LTS / squid3

Package

Name
squid3
Purl
pkg:deb/ubuntu/squid3@3.5.12-1ubuntu7.16+esm6?arch=source&distro=esm-infra/xenial

Affected ranges

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

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
3.5.12-1ubuntu7.16+esm3
3.5.12-1ubuntu7.16+esm4
3.5.12-1ubuntu7.16+esm5
3.5.12-1ubuntu7.16+esm6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.5.12-1ubuntu7.16+esm6",
            "binary_name": "squid"
        },
        {
            "binary_version": "3.5.12-1ubuntu7.16+esm6",
            "binary_name": "squid-cgi"
        },
        {
            "binary_version": "3.5.12-1ubuntu7.16+esm6",
            "binary_name": "squid-common"
        },
        {
            "binary_version": "3.5.12-1ubuntu7.16+esm6",
            "binary_name": "squid-purge"
        },
        {
            "binary_version": "3.5.12-1ubuntu7.16+esm6",
            "binary_name": "squid3"
        },
        {
            "binary_version": "3.5.12-1ubuntu7.16+esm6",
            "binary_name": "squidclient"
        }
    ]
}

Ubuntu:18.04:LTS / squid3

Package

Name
squid3
Purl
pkg:deb/ubuntu/squid3@3.5.27-1ubuntu1.12?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.5.27-1ubuntu1.12

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.5.27-1ubuntu1.12",
            "binary_name": "squid"
        },
        {
            "binary_version": "3.5.27-1ubuntu1.12",
            "binary_name": "squid-cgi"
        },
        {
            "binary_version": "3.5.27-1ubuntu1.12",
            "binary_name": "squid-common"
        },
        {
            "binary_version": "3.5.27-1ubuntu1.12",
            "binary_name": "squid-purge"
        },
        {
            "binary_version": "3.5.27-1ubuntu1.12",
            "binary_name": "squid3"
        },
        {
            "binary_version": "3.5.27-1ubuntu1.12",
            "binary_name": "squidclient"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:20.04:LTS / squid

Package

Name
squid
Purl
pkg:deb/ubuntu/squid@4.10-1ubuntu1.5?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.10-1ubuntu1.5

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

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.10-1ubuntu1.5",
            "binary_name": "squid"
        },
        {
            "binary_version": "4.10-1ubuntu1.5",
            "binary_name": "squid-cgi"
        },
        {
            "binary_version": "4.10-1ubuntu1.5",
            "binary_name": "squid-common"
        },
        {
            "binary_version": "4.10-1ubuntu1.5",
            "binary_name": "squid-purge"
        },
        {
            "binary_version": "4.10-1ubuntu1.5",
            "binary_name": "squidclient"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:22.04:LTS / squid

Package

Name
squid
Purl
pkg:deb/ubuntu/squid@4.13-10ubuntu5?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.13-10ubuntu5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "4.13-10ubuntu5",
            "binary_name": "squid"
        },
        {
            "binary_version": "4.13-10ubuntu5",
            "binary_name": "squid-cgi"
        },
        {
            "binary_version": "4.13-10ubuntu5",
            "binary_name": "squid-common"
        },
        {
            "binary_version": "4.13-10ubuntu5",
            "binary_name": "squid-openssl"
        },
        {
            "binary_version": "4.13-10ubuntu5",
            "binary_name": "squid-purge"
        },
        {
            "binary_version": "4.13-10ubuntu5",
            "binary_name": "squidclient"
        }
    ],
    "availability": "No subscription required"
}