U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

CVE-2009-2695 Detail

Current 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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  N/A
NVD score not yet provided.


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource
http://danwalsh.livejournal.com/30084.html Exploit 
http://eparis.livejournal.com/606.html
http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git;a=commit;h=47d439e9fb8a81a90022cfa785bf1c36c4e2aff6
http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git;a=commit;h=7c73875e7dda627040b12c19b01db634fa7f0fd1
http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git;a=commit;h=84336d1a77ccd2c06a730ddd38e695c2324a7386
http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git;a=commit;h=a2551df7ec568d87793d2eea4ca744e86318f205
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1d9959734a1949ea4f2427bd2d8b21ede6b2441c
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=788084aba2ab7348257597496befcbccabdc98a3
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=8cf948e744e0218af604c32edecde10006dc8e9e
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=9c0d90103c7e0eb6e638e5b649e9f6d8d9c1b4b3
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=ab5a91a8364c3d6fc617abc47cc81d162c01d90a
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/ Patch 
http://patchwork.kernel.org/patch/36650/
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 Patch 
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

Weakness Enumeration

CWE-ID CWE Name Source
CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2009-2695
NVD Published Date:
08/28/2009
NVD Last Modified:
09/18/2017
Source:
MITRE