CVE-2016-3948

critical-risk

Published 2016-04-07

Squid 3.x before 3.5.16 and 4.x before 4.0.8 improperly perform bounds checking, which allows remote attackers to cause a denial of service via a crafted HTTP response, related to Vary headers.

Do I need to act?

69.6% chance of exploitation in next 30 days

EPSS score — higher than 30% of all CVEs

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 7.5/10 High

NETWORK / LOW complexity

Affected Products (20)

Squid

Affected Vendors

Squid-Cache

References (18)

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://rhn.redhat.com/errata/RHSA-2016-2600.html

http://www.securitytracker.com/id/1035458

Vendor Advisory http://www.squid-cache.org/Advisories/SQUID-2016_4.txt

Patch http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-14016.patch

https://security.gentoo.org/glsa/201607-01

https://usn.ubuntu.com/3557-1/