CVE-2016-2570

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 9.97% Top 10%
Vendor Advisory ubuntu.com Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory squid-cache.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://usn.ubuntu.com/3557-1/ vendor advisory
https://security.gentoo.org/glsa/201607-01 vendor advisory
http://www.squid-cache.org/Advisories/SQUID-2016_2.txt vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html vendor advisory
http://www.squid-cache.org/Versions/v4/changesets/squid-4-14549.patch
http://rhn.redhat.com/errata/RHSA-2016-2600.html vendor advisory
http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html vendor advisory
http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-13993.patch
http://www.openwall.com/lists/oss-security/2016/02/26/2 mailing list
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html vendor advisory
http://www.securitytracker.com/id/1035101 vdb entry

Frequently Asked Questions

What is the severity of CVE-2016-2570?
CVE-2016-2570 has been scored as a high severity vulnerability.
How to fix CVE-2016-2570?
To fix CVE-2016-2570, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-2570 being actively exploited in the wild?
It is possible that CVE-2016-2570 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~10% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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