CVE-2009-2848

Description

The execve function in the Linux kernel, possibly 2.6.30-rc6 and earlier, does not properly clear the current->clear_child_tid pointer, which allows local users to cause a denial of service (memory corruption) or possibly gain privileges via a clone system call with CLONE_CHILD_SETTID or CLONE_CHILD_CLEARTID enabled, which is not properly handled during thread creation and exit.

Affected Platforms

Weakness Type

CWE-269

References

• http://article.gmane.org/gmane.linux.kernel/871942
• http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.html
• http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.html
• http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
• http://rhn.redhat.com/errata/RHSA-2009-1243.html
• http://secunia.com/advisories/35983