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Vulnerability record · CVE-2009-2848 · published 18 August 2009

CVE-2009-2848: Linux kernel improper privilege management vulnerability

Linux · Linux Kernel

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.

5.9 CVSS 2.0 Medium EPSS 0.52% · top 58.4% CWE-269 · Improper privilege management
5.9CVSS 2.0 base score
0.52%EPSS exploitation probability, 30 days
NoNot in CISA KEV
12Affected product versions listed by NVD
52References, 4 tagged exploit
16 Jun 2026Last modified by NVD

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.

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

Affected products

12 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://article.gmane.org/gmane.linux.kernel/871942 Broken Link
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html Mailing ListThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2009-1243.html Third Party Advisory
http://secunia.com/advisories/35983 Broken Link
http://secunia.com/advisories/36501 Broken Link
http://secunia.com/advisories/36562 Broken Link
http://secunia.com/advisories/36759 Broken Link
http://secunia.com/advisories/37105 Broken Link
http://secunia.com/advisories/37351 Broken Link
http://secunia.com/advisories/37471 Broken Link
http://www.openwall.com/lists/oss-security/2009/08/04/2 ExploitMailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2009/08/05/10 ExploitMailing ListThird Party Advisory
http://www.redhat.com/support/errata/RHSA-2009-1438.html Broken Link
http://www.securityfocus.com/archive/1/507985/100/0/threaded Third Party AdvisoryVDB Entry
http://www.securityfocus.com/archive/1/512019/100/0/threaded Third Party AdvisoryVDB Entry
http://www.ubuntu.com/usn/USN-852-1 Third Party Advisory
http://www.vmware.com/security/advisories/VMSA-2009-0016.html Third Party Advisory
http://www.vupen.com/english/advisories/2009/3316 Broken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/52899 Third Party AdvisoryVDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11412 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8598 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9766 Third Party Advisory
https://rhn.redhat.com/errata/RHSA-2009-1550.html Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01256.html Mailing ListThird Party Advisory
http://article.gmane.org/gmane.linux.kernel/871942 Broken Link
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.html Mailing ListThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html Mailing ListThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2009-1243.html Third Party Advisory
http://secunia.com/advisories/35983 Broken Link
http://secunia.com/advisories/36501 Broken Link
http://secunia.com/advisories/36562 Broken Link
http://secunia.com/advisories/36759 Broken Link
http://secunia.com/advisories/37105 Broken Link
http://secunia.com/advisories/37351 Broken Link
http://secunia.com/advisories/37471 Broken Link
http://www.openwall.com/lists/oss-security/2009/08/04/2 ExploitMailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2009/08/05/10 ExploitMailing ListThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2009-2848), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.