What’s Vulnerable › Vulnerabilities
CVE-2009-2848
- Severity: medium (CVSS 5.9 v2.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2009-08-18 · updated 2026-06-16
- Weakness: CWE-269
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 products
- Canonical Ubuntu Linux: 6.06, 8.04, 8.10, 9.04
- Fedoraproject Fedora: 11
- Linux kernel: through 2.6.29.5; 2.6.30, 2.6.30-rc1, 2.6.30-rc2, 2.6.30-rc3, 2.6.30-rc4, 2.6.30-rc5 (+1)
- Novell Linux Desktop: 9
- Opensuse: 11.0
- RedHat Enterprise Linux Desktop: 3.0, 5.0
- RedHat Enterprise Linux Server: 3.0, 5.0
- RedHat Enterprise Linux Workstation: 3.0, 5.0
- SUSE Linux Enterprise Server 15 SP1: 10-sp2
- SUSE Linux Enterprise Server: 9, 10-sp2
- VMware ESX: 4.0
- VMware Vma: 4.0
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
- http://secunia.com/advisories/36501
- http://secunia.com/advisories/36562
- http://secunia.com/advisories/36759
- http://secunia.com/advisories/37105
- http://secunia.com/advisories/37351
- http://secunia.com/advisories/37471
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