Ubuntu 5.04 / 5.10 / 6.06 LTS : krb5 vulnerabilities (USN-334-1)
High Nessus Plugin ID 27913
SynopsisThe remote Ubuntu host is missing one or more security-related patches.
DescriptionMichael Calmer and Marcus Meissner discovered that several krb5 tools did not check the return values from setuid() system calls. On systems that have configured user process limits, it may be possible for an attacker to cause setuid() to fail via resource starvation. In that situation, the tools will not reduce their privilege levels, and will continue operation as the root user.
By default, Ubuntu does not ship with user process limits.
Please note that these packages are not officially supported by Ubuntu (they are in the 'universe' component of the archive).
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected packages.