USN-1800-1: HAProxy vulnerabilities

Releases

• Ubuntu 12.10
• Ubuntu 12.04
• Ubuntu 11.10

Packages

• haproxy - fast and reliable load balancing reverse proxy

Details

It was discovered that HAProxy incorrectly handled configurations where
global.tune.bufsize was set to a value higher than the default. A remote
attacker could use this issue to cause a denial of service, or possibly
execute arbitrary code. (CVE-2012-2942)

Yves Lafon discovered that HAProxy incorrectly handled HTTP keywords in TCP
inspection rules when HTTP keep-alive is enabled. A remote attacker could
use this issue to cause a denial of service, or possibly execute arbitrary
code. (CVE-2013-1912)

Update instructions

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

Ubuntu 12.10

• haproxy - 1.4.18-0ubuntu2.1

Ubuntu 12.04

• haproxy - 1.4.18-0ubuntu1.1

Ubuntu 11.10

• haproxy - 1.4.15-1ubuntu0.1

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

References

• CVE-2012-2942
• CVE-2013-1912