CVE-2016-4054

Severity: high (CVSS 8.1 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 77.6% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-04-25 · updated 2026-06-17
Weakness: CWE-119

Description

Buffer overflow in Squid 3.x before 3.5.17 and 4.x before 4.0.9 allows remote attackers to execute arbitrary code via crafted Edge Side Includes (ESI) responses.

Affected products

Canonical Ubuntu Linux: 12.04, 14.04, 15.10, 16.04
Oracle Corporation Oracle Linux: 6, 7
Squid: 3.0, 3.1, 3.1.0.1, 3.1.0.2, 3.1.0.3, 3.1.0.4 (+134)

References

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html
http://www.debian.org/security/2016/dsa-3625
http://www.openwall.com/lists/oss-security/2016/04/20/6
http://www.openwall.com/lists/oss-security/2016/04/20/9
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
http://www.securityfocus.com/bid/86788
http://www.securitytracker.com/id/1035647
http://www.squid-cache.org/Advisories/SQUID-2016_6.txt
http://www.ubuntu.com/usn/USN-2995-1
https://access.redhat.com/errata/RHSA-2016:1138

Get alerted when CVE-2016-4054 or the next vulnerability affects your stack