CVE-2009-2848

MEDIUM

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

Details

Source: MITRE

Published: 2009-08-18

Updated: 2018-10-10

Risk Information

CVSS v2.0

Base Score: 4.7

Vector: AV:L/AC:M/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 3.4

Severity: MEDIUM