Several security issues were fixed in Pidgin.
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)
25 February 2013
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in Pidgin.
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)
The problem can be corrected by updating your system to the following package versions:
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.
Vulmon