USN-2921-1: Squid vulnerabilities

Releases

• Ubuntu 15.10
• Ubuntu 14.04 ESM
• Ubuntu 12.04

Packages

• squid3 - Web proxy cache server

Details

Sebastian Krahmer discovered that Squid incorrectly handled certain SNMP
requests. If SNMP is enabled, a remote attacker could use this issue to
cause Squid to crash, resulting in a denial of service, or possibly execute
arbitrary code. (CVE-2014-6270)

Alex Rousskov discovered that Squid incorrectly handled certain malformed
responses. A remote attacker could possibly use this issue to cause Squid
to crash, resulting in a denial of service. (CVE-2016-2571)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 15.10

• squid3 - 3.3.8-1ubuntu16.2

Ubuntu 14.04

• squid3 - 3.3.8-1ubuntu6.6

Ubuntu 12.04

• squid3 - 3.1.19-1ubuntu3.12.04.6

In general, a standard system update will make all the necessary changes.

References

• CVE-2014-6270
• CVE-2016-2571

Related notices

• USN-3557-1: squid-cgi, squid3-common, squidclient, squid-common, squid, squid-purge, squid3