CVE & CISA-KEV CatalogNVD
CVE-2021-28116
LOWEPSS 96th pctl3.7
CVSS v3
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 v3 Vector
Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Exploit Intelligence
13.00%probability of exploitation in 30 days
96thpercentile
Very high risk: more likely to be exploited than 96% of all known CVEs.
References
- http://www.openwall.com/lists/oss-security/2021/10/04/1
- http://www.squid-cache.org/Versions/
- https://github.com/squid-cache/squid/security/advisories/GHSA-rgf3-9v3p-qp82
- 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/202105-14
- https://www.debian.org/security/2022/dsa-5171
- https://www.zerodayinitiative.com/advisories/ZDI-21-157/
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.