CVE-2009-2848 Information

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.

Reference

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/oval3Aorg.mitre.oval3Adef3A11412 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A8598 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A9766 https://rhn.redhat.com/errata/RHSA-2009-1550.html https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01256.html