CVE-2016-4051

high
Published 2016-04-25 · Modified 2026-05-06
CVSS v3
8.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v2
6.8
VIR risk
8.8

Description

Buffer overflow in cachemgr.cgi in Squid 2.x, 3.x before 3.5.17, and 4.x before 4.0.9 might allow remote attackers to cause a denial of service or execute arbitrary code by seeding manager reports with crafted data.

Predictions

Exploit likelihood
92%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2016-4051

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — http://www.squid-cache.org/Advisories/SQUID-2016_5.txt

vendor Authored 2026-05-27

Vendor advisory: cve@mitre.org — http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2016-4051.html

OS impact

OSVersionStatusFixed in
suse slesaffected
ubuntu ubuntu12.04affected
ubuntu ubuntu14.04affected
ubuntu ubuntu15.10affected
ubuntu ubuntu16.04affected
debian debianbookwormfixed4.1-1
debian debianbullseyefixed4.1-1
debian debianforkyfixed4.1-1
debian debiansidfixed4.1-1
debian debiantrixiefixed4.1-1

Application impact

VendorProductVersionsFixed
squid-cachesquid2.0
squid-cachesquid2.1
squid-cachesquid2.2
squid-cachesquid2.3
squid-cachesquid2.4
squid-cachesquid2.5
squid-cachesquid2.6
squid-cachesquid2.7
squid-cachesquid3.0
squid-cachesquid3.1
squid-cachesquid3.1.0.1
squid-cachesquid3.1.0.2
squid-cachesquid3.1.0.3
squid-cachesquid3.1.0.4
squid-cachesquid3.1.0.5
squid-cachesquid3.1.0.6
squid-cachesquid3.1.0.7
squid-cachesquid3.1.0.8
squid-cachesquid3.1.0.9
squid-cachesquid3.1.0.10
squid-cachesquid3.1.0.11
squid-cachesquid3.1.0.12
squid-cachesquid3.1.0.13
squid-cachesquid3.1.0.14
squid-cachesquid3.1.0.15
squid-cachesquid3.1.0.16
squid-cachesquid3.1.0.17
squid-cachesquid3.1.0.18
squid-cachesquid3.1.1
squid-cachesquid3.1.2
squid-cachesquid3.1.3
squid-cachesquid3.1.4
squid-cachesquid3.1.5
squid-cachesquid3.1.5.1
squid-cachesquid3.1.6
squid-cachesquid3.1.7
squid-cachesquid3.1.8
squid-cachesquid3.1.9
squid-cachesquid3.1.10
squid-cachesquid3.1.11
squid-cachesquid3.1.12
squid-cachesquid3.1.12.1
squid-cachesquid3.1.12.2
squid-cachesquid3.1.12.3
squid-cachesquid3.1.13
squid-cachesquid3.1.14
squid-cachesquid3.1.15
squid-cachesquid3.1.16
squid-cachesquid3.1.17
squid-cachesquid3.1.18
squid-cachesquid3.1.19
squid-cachesquid3.1.20
squid-cachesquid3.1.21
squid-cachesquid3.1.22
squid-cachesquid3.2.0.1
squid-cachesquid3.2.0.2
squid-cachesquid3.2.0.3
squid-cachesquid3.2.0.4
squid-cachesquid3.2.0.5
squid-cachesquid3.2.0.6
squid-cachesquid3.2.0.7
squid-cachesquid3.2.0.8
squid-cachesquid3.2.0.9
squid-cachesquid3.2.0.10
squid-cachesquid3.2.0.11
squid-cachesquid3.2.0.12
squid-cachesquid3.2.0.13
squid-cachesquid3.2.0.14
squid-cachesquid3.2.0.15
squid-cachesquid3.2.0.16
squid-cachesquid3.2.0.17
squid-cachesquid3.2.0.18
squid-cachesquid3.2.0.19
squid-cachesquid3.2.1
squid-cachesquid3.2.2
squid-cachesquid3.2.3
squid-cachesquid3.2.4
squid-cachesquid3.2.5
squid-cachesquid3.2.6
squid-cachesquid3.2.7
squid-cachesquid3.2.8
squid-cachesquid3.2.9
squid-cachesquid3.2.10
squid-cachesquid3.2.11
squid-cachesquid3.2.12
squid-cachesquid3.2.13
squid-cachesquid3.3.0
squid-cachesquid3.3.0.1
squid-cachesquid3.3.0.2
squid-cachesquid3.3.0.3
squid-cachesquid3.3.1
squid-cachesquid3.3.2
squid-cachesquid3.3.3
squid-cachesquid3.3.4
squid-cachesquid3.3.5
squid-cachesquid3.3.6
squid-cachesquid3.3.7
squid-cachesquid3.3.8
squid-cachesquid3.3.9
squid-cachesquid3.3.10
squid-cachesquid3.3.11
squid-cachesquid3.3.12
squid-cachesquid3.3.13
squid-cachesquid3.3.14
squid-cachesquid3.4.0.1
squid-cachesquid3.4.0.2
squid-cachesquid3.4.0.3
squid-cachesquid3.4.1
squid-cachesquid3.4.2
squid-cachesquid3.4.3
squid-cachesquid3.4.4
squid-cachesquid3.4.4.1
squid-cachesquid3.4.4.2
squid-cachesquid3.4.8
squid-cachesquid3.4.9
squid-cachesquid3.4.10
squid-cachesquid3.4.11
squid-cachesquid3.4.12
squid-cachesquid3.4.13
squid-cachesquid3.4.14
squid-cachesquid3.5.0.1
squid-cachesquid3.5.0.2
squid-cachesquid3.5.0.3
squid-cachesquid3.5.0.4
squid-cachesquid3.5.1
squid-cachesquid3.5.2
squid-cachesquid3.5.3
squid-cachesquid3.5.4
squid-cachesquid3.5.5
squid-cachesquid3.5.6
squid-cachesquid3.5.7
squid-cachesquid3.5.8
squid-cachesquid3.5.9
squid-cachesquid3.5.10
squid-cachesquid3.5.11
squid-cachesquid3.5.12
squid-cachesquid3.5.13
squid-cachesquid3.5.14
squid-cachesquid3.5.15
squid-cachesquid3.5.16
squid-cachesquid4.0.1
squid-cachesquid4.0.2
squid-cachesquid4.0.3
squid-cachesquid4.0.4
squid-cachesquid4.0.5
squid-cachesquid4.0.6
squid-cachesquid4.0.7
squid-cachesquid4.0.8

References

CWEs

CWE-119

Verify integrity in audit chain (admin only). AS-IS.