CVE-2009-2848medium
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.
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
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01256.html