CVE-2016-4052
Multiple stack-based buffer overflows in Squid 3.x before 3.5.17 and 4.x before 4.0.9 allow remote HTTP servers to cause a denial of service or execute arbitrary code via crafted Edge Side Includes (ESI) responses.
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
Multiple stack-based buffer overflows in Squid 3.x before 3.5.17 and 4.x before 4.0.9 allow remote HTTP servers to cause a denial of service or execute arbitrary code via crafted Edge Side Includes (ESI) responses.
- CVSS 3.0
- 8.1 HIGHCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 12.87% probability · 96th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- canonical/ubuntu linux · squid-cache/squid
- Source
- cve@mitre.org
EPSS 12.9% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
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/2016/04/20/6Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/04/20/9Mailing List, Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.htmlPatch, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.securityfocus.com/bid/86788
- http://www.securityfocus.com/bid/91787Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1035647Third Party Advisory, VDB Entry
- http://www.squid-cache.org/Advisories/SQUID-2016_6.txtVendor Advisory
- http://www.ubuntu.com/usn/USN-2995-1Third Party Advisory
- https://access.redhat.com/errata/RHSA-2016:1138
- https://access.redhat.com/errata/RHSA-2016:1139
- https://access.redhat.com/errata/RHSA-2016:1140
- https://security.gentoo.org/glsa/201607-01
- 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/2016/04/20/6Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/04/20/9Mailing List, Third Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.htmlPatch, Third Party Advisory
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.securityfocus.com/bid/86788
- http://www.securityfocus.com/bid/91787Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1035647Third Party Advisory, VDB Entry
- http://www.squid-cache.org/Advisories/SQUID-2016_6.txtVendor Advisory
- http://www.ubuntu.com/usn/USN-2995-1Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.