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Ubuntu 12.04 LTS: USN-1629-1 Critical: libproxy Remote Execution Risk

ubuntu
Calendar Grey November 12, 2012
Scroller Ubuntu
Serious libproxy flaws identified in Ubuntu pose risks of service disruptions or remote code execution for attackers.
libproxy could be made to crash or run programs if it received specially crafted network traffic.

Summary

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

crafted network traffic.

Software Description:

- libproxy: automatic proxy configuration management library

Details:

Tomas Mraz discovered that libproxy incorrectly handled certain PAC files.

A remote attacker could use this issue to cause libproxy to crash, or to

possibly execute arbitrary code. (CVE-2012-4504, CVE-2012-4505)

Topics%20covered

Topics Covered

security advisory critical remote execution ubuntu libproxy

Update Instructions

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

Ubuntu 12.04 LTS:
  libproxy1                       0.4.7-0ubuntu4.1

Ubuntu 11.10:
  libproxy0                       0.3.1-2ubuntu6.1

Ubuntu 10.04 LTS:
  libproxy0                       0.3.1-1ubuntu1.1

After a standard system update you need to restart your session to make
all the necessary changes.

References

https://ubuntu.com/security/notices/USN-1629-1

CVE-2012-4504, CVE-2012-4505

Severity
critical
Lowest
Low
Medium
High
Critical

November 12, 2012

Topics%20covered

Topics Covered

security advisory critical remote execution ubuntu libproxy

Package Information

https://launchpad.net/ubuntu/+source/libproxy/0.4.7-0ubuntu4.1
https://launchpad.net/ubuntu/+source/libproxy/0.3.1-2ubuntu6.1
https://launchpad.net/ubuntu/+source/libproxy/0.3.1-1ubuntu1.1

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