Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | <= 2.6.29.5 |
| Novell | Linux Desktop | 9 |
| Opensuse | Opensuse | 11.0 |
| Suse | Linux Enterprise Desktop | 10 |
| Suse | Linux Enterprise Server | 9 |
| Fedoraproject | Fedora | 11 |
| Canonical | Ubuntu Linux | 6.06 |
| Redhat | Enterprise Linux Desktop | 3.0 |
| Redhat | Enterprise Linux Server | 3.0 |
| Redhat | Enterprise Linux Workstation | 3.0 |
| Vmware | Esx | 4.0 |
| Vmware | Vma | 4.0 |
| Redhat | Enterprise Linux | 5.0 |
Related Weaknesses (CWE)
References
- http://article.gmane.org/gmane.linux.kernel/871942Broken Link
- http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.htmlMailing ListThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2009-1243.htmlThird Party Advisory
- http://secunia.com/advisories/35983Broken Link
- http://secunia.com/advisories/36501Broken Link
- http://secunia.com/advisories/36562Broken Link
- http://secunia.com/advisories/36759Broken Link
- http://secunia.com/advisories/37105Broken Link
- http://secunia.com/advisories/37351Broken Link
- http://secunia.com/advisories/37471Broken Link
- http://www.openwall.com/lists/oss-security/2009/08/04/2ExploitMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2009/08/05/10ExploitMailing ListThird Party Advisory
- http://www.redhat.com/support/errata/RHSA-2009-1438.htmlBroken Link
FAQ
What is CVE-2009-2848?
CVE-2009-2848 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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 co...
How severe is CVE-2009-2848?
CVE-2009-2848 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2009-2848?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Novell Linux Desktop, Opensuse Opensuse, Suse Linux Enterprise Desktop, Suse Linux Enterprise Server.