USN-1746-1: Pidgin vulnerabilities

Ubuntu Security Notice USN-1746-1

25th February, 2013

pidgin vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 12.10
  • Ubuntu 12.04 LTS
  • Ubuntu 11.10
  • Ubuntu 10.04 LTS

Summary

Several security issues were fixed in Pidgin.

Software description

  • pidgin - graphical multi-protocol instant messaging client for X

Details

Chris Wysopal discovered that Pidgin incorrectly handled file transfers in
the MXit protocol handler. A remote attacker could use this issue to create
or overwrite arbitrary files. This issue only affected Ubuntu 11.10,
Ubuntu 12.04 LTS and Ubuntu 12.10. (CVE-2013-0271)

It was discovered that Pidgin incorrectly handled long HTTP headers in the
MXit protocol handler. A malicious remote server could use this issue to
execute arbitrary code. (CVE-2013-0272)

It was discovered that Pidgin incorrectly handled long user IDs in the
Sametime protocol handler. A malicious remote server could use this issue
to cause Pidgin to crash, resulting in a denial of service. (CVE-2013-0273)

It was discovered that Pidgin incorrectly handled long strings when
processing UPnP responses. A remote attacker could use this issue to cause
Pidgin to crash, resulting in a denial of service. (CVE-2013-0274)

Update instructions

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

Ubuntu 12.10:
pidgin 1:2.10.6-0ubuntu2.2
libpurple0 1:2.10.6-0ubuntu2.2
Ubuntu 12.04 LTS:
pidgin 1:2.10.3-0ubuntu1.3
libpurple0 1:2.10.3-0ubuntu1.3
Ubuntu 11.10:
pidgin 1:2.10.0-0ubuntu2.2
libpurple0 1:2.10.0-0ubuntu2.2
Ubuntu 10.04 LTS:
pidgin 1:2.6.6-1ubuntu4.6
libpurple0 1:2.6.6-1ubuntu4.6

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

CVE-2013-0271, CVE-2013-0272, CVE-2013-0273, CVE-2013-0274