USN-1249-1: BackupPC vulnerabilities

Releases

• Ubuntu 11.10
• Ubuntu 11.04
• Ubuntu 10.10
• Ubuntu 10.04
• Ubuntu 8.04

Packages

• backuppc - high-performance, enterprise-grade system for backing up PCs

Details

It was discovered that BackupPC did not properly sanitize its input when
processing backup browser error messages, resulting in a cross-site
scripting (XSS) vulnerability. With cross-site scripting vulnerabilities,
if a user were tricked into viewing server output during a crafted server
request, a remote attacker could exploit this to modify the contents, or
steal confidential data, within the same domain. This issue did not affect
Ubuntu 11.10. (CVE-2011-3361)

Jamie Strandboge discovered that BackupPC did not properly sanitize its
input when processing log file viewer error messages, resulting in
cross-site scripting (XSS) vulnerabilities.

Update instructions

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

Ubuntu 8.04

• backuppc - 3.0.0-4ubuntu1.3

Ubuntu 11.10

• backuppc - 3.2.1-1ubuntu1.1

Ubuntu 11.04

• backuppc - 3.2.0-3ubuntu4.2

Ubuntu 10.10

• backuppc - 3.1.0-9ubuntu2.2

Ubuntu 10.04

• backuppc - 3.1.0-9ubuntu1.2

In general, a standard system update will make all the necessary changes.

References

• CVE-2011-3361