CVE-2016-4555

Public Exploit

Description

client_side_request.cc in Squid 3.x before 3.5.18 and 4.x before 4.0.10 allows remote servers to cause a denial of service (crash) via crafted Edge Side Includes (ESI) responses.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 68.92% Top 5%
Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory squid-cache.org Vendor Advisory squid-cache.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://bugs.squid-cache.org/show_bug.cgi?id=4455 patch exploit vendor advisory issue tracking
https://security.gentoo.org/glsa/201607-01 vendor advisory
http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2016_9.patch patch
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html third party advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html vendor advisory
http://www.squid-cache.org/Versions/v3/3.4/changesets/SQUID-2016_9.patch patch
http://www.ubuntu.com/usn/USN-2995-1 third party advisory vendor advisory
http://www.openwall.com/lists/oss-security/2016/05/06/5 patch mailing list third party advisory
https://access.redhat.com/errata/RHSA-2016:1140 vendor advisory
http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html vendor advisory
http://www.securitytracker.com/id/1035770 third party advisory vdb entry
http://www.squid-cache.org/Advisories/SQUID-2016_9.txt vendor advisory
https://access.redhat.com/errata/RHSA-2016:1139 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html vendor advisory
http://www.openwall.com/lists/oss-security/2016/05/06/3 patch mailing list release notes
http://www.debian.org/security/2016/dsa-3625 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-4555?
CVE-2016-4555 has been scored as a high severity vulnerability.
How to fix CVE-2016-4555?
To fix CVE-2016-4555, 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-2016-4555 being actively exploited in the wild?
It is possible that CVE-2016-4555 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~69% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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