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CVE-2009-2695
The Linux kernel before 2.6.31-rc7 does not properly prevent mmap operations that target page zero and other low memory addresses, which…
- 7.2HighCVSS base score
- 0.51%Exploitation in 30 daysEPSS · top 56% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
The Linux kernel before 2.6.31-rc7 does not properly prevent mmap operations that target page zero and other low memory addresses, which allows local users to gain privileges by exploiting NULL pointer dereference vulnerabilities, related to (1) the default configuration of the allow_unconfined_mmap_low boolean in SELinux on Red Hat Enterprise Linux (RHEL) 5, (2) an error that causes allow_unconfined_mmap_low to be ignored in the unconfined_t domain, (3) lack of a requirement for the CAP_SYS_RAWIO capability for these mmap operations, and (4) interaction between the mmap_min_addr protection mechanism and certain application programs.
Timeline
ID reserved
By mitre
- 23 days later
· 23 days later
Published
- 15 years later
· 15 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 0.51% · top 56% of all CVEs (11 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.
Affected products
n/a
- affected n/a
References
References37
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc7 (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2009:1672 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git%3Ba=commit%3Bh=84336d1a77ccd2c06a730ddd38e695c2324a7386 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1d9959734a1949ea4f2427bd2d8b21ede6b2441c (opens in a new tab)x_refsource_CONFIRMx_transferred
- 36051 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- RHSA-2009:1540 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=517830 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ab5a91a8364c3d6fc617abc47cc81d162c01d90a (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-852-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- 38794 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- [security-announce] 20100303 VMSA-2010-0004 ESX Service Console and vMA third party updates (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://patchwork.kernel.org/patch/36540/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git%3Ba=commit%3Bh=47d439e9fb8a81a90022cfa785bf1c36c4e2aff6 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://patchwork.kernel.org/patch/36539/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://kbase.redhat.com/faq/docs/DOC-18042 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=788084aba2ab7348257597496befcbccabdc98a3 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://eparis.livejournal.com/606.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://twitter.com/spendergrsec/statuses/3303390960 (opens in a new tab)x_refsource_MISCx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=511143 (opens in a new tab)x_refsource_CONFIRMx_transferred
- FEDORA-2009-9044 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- http://patchwork.kernel.org/patch/36649/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- RHSA-2009:1548 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- http://thread.gmane.org/gmane.linux.kernel.lsm/9075 (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git%3Ba=commit%3Bh=a2551df7ec568d87793d2eea4ca744e86318f205 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 38834 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://danwalsh.livejournal.com/30084.html (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git%3Ba=commit%3Bh=7c73875e7dda627040b12c19b01db634fa7f0fd1 (opens in a new tab)x_refsource_CONFIRMx_transferred
- oval:org.mitre.oval:def:9882 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- http://patchwork.kernel.org/patch/36650/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9c0d90103c7e0eb6e638e5b649e9f6d8d9c1b4b3 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [oss-security] 20090817 SELinux and mmap_min_addr behaviour (CVE-2009-2695) (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- oval:org.mitre.oval:def:7144 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- 36501 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8cf948e744e0218af604c32edecde10006dc8e9e (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-2005 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 37105 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ADV-2010-0528 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2009-2687 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2009-2695)Record last updated .