CVE-2009-2848
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine without logging in. High risk of service disruption.
- Exploit odds
- 0.5% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.5% in the next 30 days (EPSS).
- Severity: 5.9 MEDIUM (CVSS).
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 0.5% · EPSS, next 30 days
- Weakness
- CWE-269 · Improper privilege management
- Record status
- Modified
Affected
- Linux Kernel ≤ 2.6.29.5
- Linux Kernel 2.6.30
- Novell Linux Desktop 9
- Opensuse 11.0
- Suse Linux Enterprise Desktop 10
- Suse Linux Enterprise Server 9
- Suse Linux Enterprise Server 10
- Fedoraproject Fedora 11
Attack profile CVSS 2.0 · 5.9
- Attack vector
- Local
- Complexity
- Medium
- Authentication
- None
- Confidentiality
- Partial
- Integrity
- Partial
- Availability
- Complete
Raw vector
AV:L/AC:M/Au:N/C:P/I:P/A:C
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2009-2848.md and follow it. Check whether this project is affected by CVE-2009-2848. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
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
- http://www.openwall.com/lists/oss-security/2009/08/04/2
- http://www.openwall.com/lists/oss-security/2009/08/05/10
- http://www.redhat.com/support/errata/RHSA-2009-1438.html
- http://www.securityfocus.com/archive/1/507985/100/0/threaded
- http://www.securityfocus.com/archive/1/512019/100/0/threaded
- http://www.ubuntu.com/usn/USN-852-1
- http://www.vmware.com/security/advisories/VMSA-2009-0016.html
- http://www.vupen.com/english/advisories/2009/3316
- https://exchange.xforce.ibmcloud.com/vulnerabilities/52899
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11412
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8598
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9766
- https://rhn.redhat.com/errata/RHSA-2009-1550.html