USN-778-1: cron vulnerability

Releases

• Ubuntu 9.04
• Ubuntu 8.10
• Ubuntu 8.04
• Ubuntu 6.06

Packages

• cron -

Details

It was discovered that cron did not properly check the return code of
the setgid() and initgroups() system calls. A local attacker could use
this to escalate group privileges. Please note that cron versions 3.0pl1-64
and later were already patched to address the more serious setuid() check
referred to by CVE-2006-2607.

Update instructions

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

Ubuntu 9.04

• cron - 3.0pl1-105ubuntu1.1

Ubuntu 8.10

• cron - 3.0pl1-104+ubuntu5.1

Ubuntu 8.04

• cron - 3.0pl1-100ubuntu2.1

Ubuntu 6.06

• cron - 3.0pl1-92ubuntu1.1

In general, a standard system upgrade is sufficient to effect the
necessary changes.

References

• CVE-2006-2607