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Alerts This Week
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Ubuntu 12.04 LTS: 1800-1 Critical: HAProxy Denial of Service

ubuntu
Calendar Grey April 15, 2013
Scroller Ubuntu
Essential warning for HAProxy users on Ubuntu; manipulated requests could lead to Denial of Service or remote code execution. Ensure updates are applied for safeguarding.
HAProxy could be made to crash or run programs if it received specially crafted network traffic.

Summary

HAProxy could be made to crash or run programs if it received specially

crafted network traffic.

Software Description:

- 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)

Topics%20covered

Topics Covered

security advisory denial of service remote code execution critical severity ubuntu haproxy

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 LTS:
  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

https://ubuntu.com/security/notices/USN-1800-1

CVE-2012-2942, CVE-2013-1912

Severity
critical
Lowest
Low
Medium
High
Critical

April 15, 2013

Topics%20covered

Topics Covered

security advisory denial of service remote code execution critical severity ubuntu haproxy

Package Information

https://launchpad.net/ubuntu/+source/haproxy/1.4.18-0ubuntu2.1
https://launchpad.net/ubuntu/+source/haproxy/1.4.18-0ubuntu1.1
https://launchpad.net/ubuntu/+source/haproxy/1.4.15-1ubuntu0.1

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