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. This can be leveraged as part of a chain for remote code execution as nobody.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
3.7 LOW
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 95%
Affected Products (NVD)
VendorProductVersion
squid-cachesquid
𝑥
≤ 4.14
squid-cachesquid
5.0 ≤
𝑥
≤ 5.0.5
debiandebian_linux
10.0
debiandebian_linux
11.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
squid
bookworm
5.7-2+deb12u2
fixed
bookworm (security)
5.7-2+deb12u2
fixed
bullseye
4.13-10+deb11u3
fixed
bullseye (security)
4.13-10+deb11u3
fixed
sid
6.12-1
fixed
stretch
postponed
trixie
6.12-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
squid
bionic
dne
focal
Fixed 4.10-1ubuntu1.5
released
groovy
ignored
hirsute
Fixed 4.13-1ubuntu4.2
released
impish
Fixed 4.13-10ubuntu5
released
jammy
Fixed 4.13-10ubuntu5
released
kinetic
Fixed 4.13-10ubuntu5
released
lunar
Fixed 4.13-10ubuntu5
released
mantic
Fixed 4.13-10ubuntu5
released
noble
Fixed 4.13-10ubuntu5
released
trusty
dne
xenial
dne
squid3
bionic
Fixed 3.5.27-1ubuntu1.12
released
focal
dne
groovy
dne
hirsute
dne
impish
dne
jammy
dne
kinetic
dne
lunar
dne
mantic
dne
noble
dne
trusty
dne
xenial
needed
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
squid
Amazon Linux 2
7:3.5.20-17.amzn2.7.10
fixed
squid-debuginfo
Amazon Linux 2
7:3.5.20-17.amzn2.7.10
fixed
squid-migration-script
Amazon Linux 2
7:3.5.20-17.amzn2.7.10
fixed
squid-sysvinit
Amazon Linux 2
7:3.5.20-17.amzn2.7.10
fixed
Common Weakness Enumeration
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/
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/