USN-1746-1: Pidgin vulnerabilities

Releases

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

Packages

• 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 versions:

Ubuntu 12.10

• pidgin - 1:2.10.6-0ubuntu2.2
• libpurple0 - 1:2.10.6-0ubuntu2.2

Ubuntu 12.04

• 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

• pidgin - 1:2.6.6-1ubuntu4.6
• libpurple0 - 1:2.6.6-1ubuntu4.6

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