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CVE-2009-2848

18
FAUCET Score

CVE-2009-2848 describes a memory corruption vulnerability in the Linux kernel's execve function, affecting versions possibly up to 2.6.30-rc6 and various distributions including Canonical, Fedora, Red Hat, SUSE, and VMware. This flaw allows local users to trigger a denial of service or potentially escalate privileges by manipulating the clear_child_tid pointer during thread creation and exit via specific clone system calls. With a CVSS score of 5.9, it is a medium-severity vulnerability requiring local access and medium attack complexity, leading to potential partial confidentiality, integrity, and complete availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.29.5CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
2.6.30CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.30:-:*:*:*:*:*:*
2.6.30CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.30:rc1:*:*:*:*:*:*
2.6.30CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.30:rc2:*:*:*:*:*:*
2.6.30CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.30:rc3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.9MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
8.5
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.52%
Probability of exploitation in next 30 days
EPSS Percentile
40.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0052 is in the 78th percentile among its peer group of 1,595 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

redhatpatch availablevia redhat_api
Product: MRG for RHEL-5Fixed in: kernel-rt-0:2.6.24.7-132.el5rt
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 3Fixed in: kernel-0:2.4.21-63.EL
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: kernel-0:2.6.9-89.0.11.EL
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-164.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5.3.Z - Server OnlyFixed in: kernel-0:2.6.18-128.8.1.el5
View patch

Vendor Advisories (1)

redhatCVE-2009-2848Important

kernel: execve: must clear current->clear_child_tid

Jul 31, 2009

References

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