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CVE-2009-2695

23
FAUCET Score

CVE-2009-2695 describes a vulnerability in the Linux kernel before version 2.6.31-rc7, where improper handling of mmap operations targeting low memory addresses allows local users to gain privileges through NULL pointer dereferences. This issue is exacerbated by SELinux configuration flaws and a lack of required capabilities for these mmap operations. With a CVSS score of 7.2 (High), this vulnerability has a low attack complexity and requires local access, but can lead to complete compromise of confidentiality, integrity, and availability. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.31CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:rc6:*:*:*:*:*:*
2.6.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:*
2.6.1CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.1:*:*:*:*:*:*:*
2.6.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.2:*:*:*:*:*:*:*
2.6.3CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.6.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.51%
Probability of exploitation in next 30 days
EPSS Percentile
40.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0051 is in the 61st percentile among its peer group of 3,241 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.5 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: MRG for RHEL-5Fixed in: kernel-rt-0:2.6.24.7-137.el5rt
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-164.6.1.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5.2 Z StreamFixed in: kernel-0:2.6.18-92.1.32.el5
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5.3.Z - Server OnlyFixed in: kernel-0:2.6.18-128.11.1.el5
View patch

Vendor Advisories (1)

redhatCVE-2009-2695Important

kernel: SELinux and mmap_min_addr

Jul 31, 2009

References

danwalsh.livejournal.com / 30084.html
Exploit
eparis.livejournal.com / 606.html
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
git.kernel.org
kbase.redhat.com / faq/docs/DOC-18042
lists.vmware.com / pipermail/security-announce/2010/000082.html
patchwork.kernel.org / patch/36539
patchwork.kernel.org / patch/36540
patchwork.kernel.org / patch/36649
Patch
patchwork.kernel.org / patch/36650
bugzilla.redhat.com / show_bug.cgi
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/36501
Vendor Advisory
secunia.com / advisories/37105
secunia.com / advisories/38794
secunia.com / advisories/38834
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7144
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9882
rhn.redhat.com / errata/RHSA-2009-1540.html
rhn.redhat.com / errata/RHSA-2009-1548.html
redhat.com / archives/fedora-package-announce/2009-August/msg01256.html
thread.gmane.org / gmane.linux.kernel.lsm/9075
twitter.com / spendergrsec/statuses/3303390960
debian.org / security/2010/dsa-2005
kernel.org / pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc7
openwall.com / lists/oss-security/2009/08/17/4
redhat.com / support/errata/RHSA-2009-1672.html
securityfocus.com / bid/36051
Patch
ubuntu.com / usn/USN-852-1
vupen.com / english/advisories/2010/0528