CVE-2016-2570

7.5 HIGH
Published: February 27, 2016 Modified: May 06, 2026
View on NVD

Description

The Edge Side Includes (ESI) parser in Squid 3.x before 3.5.15 and 4.x before 4.0.7 does not check buffer limits during XML parsing, which allows remote HTTP servers to cause a denial of service (assertion failure and daemon exit) via a crafted XML document, related to esi/CustomParser.cc and esi/CustomParser.h.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
Source: cve@mitre.org
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
Source: cve@mitre.org
http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html
Source: cve@mitre.org
http://rhn.redhat.com/errata/RHSA-2016-2600.html
Source: cve@mitre.org
http://www.openwall.com/lists/oss-security/2016/02/26/2
Source: cve@mitre.org
http://www.securitytracker.com/id/1035101
Source: cve@mitre.org
http://www.squid-cache.org/Advisories/SQUID-2016_2.txt
Source: cve@mitre.org
Vendor Advisory
http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-13993.patch
Source: cve@mitre.org
http://www.squid-cache.org/Versions/v4/changesets/squid-4-14549.patch
Source: cve@mitre.org
https://security.gentoo.org/glsa/201607-01
Source: cve@mitre.org
https://usn.ubuntu.com/3557-1/
Source: cve@mitre.org
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://rhn.redhat.com/errata/RHSA-2016-2600.html
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2016/02/26/2
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.securitytracker.com/id/1035101
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.squid-cache.org/Advisories/SQUID-2016_2.txt
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-13993.patch
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.squid-cache.org/Versions/v4/changesets/squid-4-14549.patch
Source: af854a3a-2127-422b-91ae-364da2661108
https://security.gentoo.org/glsa/201607-01
Source: af854a3a-2127-422b-91ae-364da2661108
https://usn.ubuntu.com/3557-1/
Source: af854a3a-2127-422b-91ae-364da2661108

22 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
5.5%
90th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-20

Affected Vendors

squid-cache

Related CVEs

CVE-2026-42174 N/A
CVE-2026-42137 N/A
CVE-2026-42069 N/A
CVE-2026-42051 N/A
CVE-2026-41311 7.5