CVE-2009-2695
Severity CVSS v4.0:
Pending analysis
Type:
CWE-119
Buffer Errors
Publication date:
28/08/2009
Last modified:
09/04/2025
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.
Impact
Base Score 2.0
7.20
Severity 2.0
HIGH
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:rc6:*:*:*:*:*:* | 2.6.31 (including) | |
| cpe:2.3:o:linux:linux_kernel:2.6.0:*:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.1:*:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.2:*:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.3:*:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.4:*:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.5:*:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.6:*:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.7:*:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.8:*:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.8.1:*:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.9:*:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.10:*:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.11:*:*:*:*:*:*:* | ||
| cpe:2.3:o:linux:linux_kernel:2.6.11.1:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page
References to Advisories, Solutions, and Tools
- http://danwalsh.livejournal.com/30084.html
- http://eparis.livejournal.com/606.html
- http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git%3Ba%3Dcommit%3Bh%3D47d439e9fb8a81a90022cfa785bf1c36c4e2aff6
- http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git%3Ba%3Dcommit%3Bh%3D7c73875e7dda627040b12c19b01db634fa7f0fd1
- http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git%3Ba%3Dcommit%3Bh%3D84336d1a77ccd2c06a730ddd38e695c2324a7386
- http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git%3Ba%3Dcommit%3Bh%3Da2551df7ec568d87793d2eea4ca744e86318f205
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba%3Dcommit%3Bh%3D1d9959734a1949ea4f2427bd2d8b21ede6b2441c
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba%3Dcommit%3Bh%3D788084aba2ab7348257597496befcbccabdc98a3
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba%3Dcommit%3Bh%3D8cf948e744e0218af604c32edecde10006dc8e9e
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba%3Dcommit%3Bh%3D9c0d90103c7e0eb6e638e5b649e9f6d8d9c1b4b3
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba%3Dcommit%3Bh%3Dab5a91a8364c3d6fc617abc47cc81d162c01d90a
- http://kbase.redhat.com/faq/docs/DOC-18042
- http://lists.vmware.com/pipermail/security-announce/2010/000082.html
- http://patchwork.kernel.org/patch/36539/
- http://patchwork.kernel.org/patch/36540/
- http://patchwork.kernel.org/patch/36649/
- http://patchwork.kernel.org/patch/36650/
- http://secunia.com/advisories/36501
- http://secunia.com/advisories/37105
- http://secunia.com/advisories/38794
- http://secunia.com/advisories/38834
- http://thread.gmane.org/gmane.linux.kernel.lsm/9075
- http://twitter.com/spendergrsec/statuses/3303390960
- http://www.debian.org/security/2010/dsa-2005
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc7
- http://www.openwall.com/lists/oss-security/2009/08/17/4
- http://www.redhat.com/support/errata/RHSA-2009-1672.html
- http://www.securityfocus.com/bid/36051
- http://www.ubuntu.com/usn/USN-852-1
- http://www.vupen.com/english/advisories/2010/0528
- https://bugzilla.redhat.com/show_bug.cgi?id=511143
- https://bugzilla.redhat.com/show_bug.cgi?id=517830
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7144
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9882
- https://rhn.redhat.com/errata/RHSA-2009-1540.html
- https://rhn.redhat.com/errata/RHSA-2009-1548.html
- https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01256.html
- http://danwalsh.livejournal.com/30084.html
- http://eparis.livejournal.com/606.html
- http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git%3Ba%3Dcommit%3Bh%3D47d439e9fb8a81a90022cfa785bf1c36c4e2aff6
- http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git%3Ba%3Dcommit%3Bh%3D7c73875e7dda627040b12c19b01db634fa7f0fd1
- http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git%3Ba%3Dcommit%3Bh%3D84336d1a77ccd2c06a730ddd38e695c2324a7386
- http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git%3Ba%3Dcommit%3Bh%3Da2551df7ec568d87793d2eea4ca744e86318f205
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba%3Dcommit%3Bh%3D1d9959734a1949ea4f2427bd2d8b21ede6b2441c
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba%3Dcommit%3Bh%3D788084aba2ab7348257597496befcbccabdc98a3
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba%3Dcommit%3Bh%3D8cf948e744e0218af604c32edecde10006dc8e9e
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba%3Dcommit%3Bh%3D9c0d90103c7e0eb6e638e5b649e9f6d8d9c1b4b3
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba%3Dcommit%3Bh%3Dab5a91a8364c3d6fc617abc47cc81d162c01d90a
- http://kbase.redhat.com/faq/docs/DOC-18042
- http://lists.vmware.com/pipermail/security-announce/2010/000082.html
- http://patchwork.kernel.org/patch/36539/
- http://patchwork.kernel.org/patch/36540/
- http://patchwork.kernel.org/patch/36649/
- http://patchwork.kernel.org/patch/36650/
- http://secunia.com/advisories/36501
- http://secunia.com/advisories/37105
- http://secunia.com/advisories/38794
- http://secunia.com/advisories/38834
- http://thread.gmane.org/gmane.linux.kernel.lsm/9075
- http://twitter.com/spendergrsec/statuses/3303390960
- http://www.debian.org/security/2010/dsa-2005
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc7
- http://www.openwall.com/lists/oss-security/2009/08/17/4
- http://www.redhat.com/support/errata/RHSA-2009-1672.html
- http://www.securityfocus.com/bid/36051
- http://www.ubuntu.com/usn/USN-852-1
- http://www.vupen.com/english/advisories/2010/0528
- https://bugzilla.redhat.com/show_bug.cgi?id=511143
- https://bugzilla.redhat.com/show_bug.cgi?id=517830
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7144
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9882
- https://rhn.redhat.com/errata/RHSA-2009-1540.html
- https://rhn.redhat.com/errata/RHSA-2009-1548.html
- https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01256.html