VulnerabilityModified
CVE-2021-28116
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.
MEDIUM 5.3EPSS 12.9%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 12.9%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- EPSS
- 12.95% probability · 96th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- squid-cache/squid · fedoraproject/fedora · debian/debian linux
- Source
- cve@mitre.org
References
- http://www.openwall.com/lists/oss-security/2021/10/04/1Mailing List, Third Party Advisory
- http://www.squid-cache.org/Versions/Product, Vendor Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-rgf3-9v3p-qp82Broken Link
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/
- https://security.gentoo.org/glsa/202105-14Third Party Advisory
- https://www.debian.org/security/2022/dsa-5171Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-157/Third Party Advisory, VDB Entry
- http://www.openwall.com/lists/oss-security/2021/10/04/1Mailing List, Third Party Advisory
- http://www.squid-cache.org/Versions/Product, Vendor Advisory
- https://github.com/squid-cache/squid/security/advisories/GHSA-rgf3-9v3p-qp82Broken Link
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LSQ3U54ZCNXR44QRPW3AV2VCS6K3TKCF/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/T4EPIWUZDJAXADDHVOPKRBTQHPBR6H66/
- https://security.gentoo.org/glsa/202105-14Third Party Advisory
- https://www.debian.org/security/2022/dsa-5171Third Party Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-157/Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.