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CVE-2021-28116 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CNA: [email protected]CVSS-B:3.7 LOWVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://github.com/squid-cache/squid/security/advisories/GHSA-rgf3-9v3p-qp82	CVE	Broken Link
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/	CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/	CVE
https://security.gentoo.org/glsa/202105-14	CVE	Third Party Advisory
https://www.debian.org/security/2022/dsa-5171	CVE	Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-157/	CVE	Third Party AdvisoryVDB Entry
http://www.openwall.com/lists/oss-security/2021/10/04/1	CVE	Mailing ListThird Party Advisory
http://www.squid-cache.org/Versions/	CVE	ProductVendor Advisory
https://github.com/squid-cache/squid/security/advisories/GHSA-rgf3-9v3p-qp82	[email protected]	Broken Link
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/	[email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/	[email protected]
https://security.gentoo.org/glsa/202105-14	[email protected]	Third Party Advisory
https://www.debian.org/security/2022/dsa-5171	[email protected]	Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-157/	[email protected]	Third Party AdvisoryVDB Entry
http://www.openwall.com/lists/oss-security/2021/10/04/1	[email protected]	Mailing ListThird Party Advisory
http://www.squid-cache.org/Versions/	[email protected]	ProductVendor Advisory

see all 16 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-125	Out-of-bounds Read	[email protected]

Affected Products

Product	Versions
squid-cache squid	<= 4.14 >= 5.0, <= 5.0.5
CPE cpe:2.3:a:squid-cache:squid:::::::: Remediation No remediation found in references.
fedoraproject fedora	33 34
CPE cpe:2.3:o:fedoraproject:fedora:33:::::::* cpe:2.3:o:fedoraproject:fedora:34:::::::* Remediation No remediation found in references.
debian debian linux	10.0 11.0
CPE cpe:2.3:o:debian:debian_linux:10.0:::::::* cpe:2.3:o:debian:debian_linux:11.0:::::::* Remediation No remediation found in references.

Change History

11 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Feb 3, 2023	Modified Analysis	[email protected]
Jun 28, 2022	CVE Modified	[email protected]
Apr 4, 2022	Modified Analysis	[email protected]
Oct 4, 2021	CVE Modified	[email protected]
Jun 11, 2021	CVE Modified	[email protected]
May 26, 2021	CVE Modified	[email protected]
Mar 13, 2021	Initial Analysis	[email protected]

CVE-2021-28116 Details

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Affected Products

CPE

Remediation

CPE

Remediation

CPE

Remediation

Change History

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