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CVE-2009-2695

N/A
Published: August 28, 2009 at 03:00 PM UTC
Updated: June 16, 2026 at 11:10 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.5%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
v ≤ 2.6.312.6.02.6.12.6.102.6.112.6.11.12.6.11.102.6.11.112.6.11.122.6.11.22.6.11.32.6.11.42.6.11.52.6.11.62.6.11.72.6.11.82.6.11.92.6.122.6.12.12.6.12.22.6.12.32.6.12.42.6.12.52.6.12.62.6.132.6.13.12.6.13.22.6.13.32.6.13.42.6.13.52.6.142.6.14.12.6.14.22.6.14.32.6.14.42.6.14.52.6.14.62.6.14.72.6.152.6.15.12.6.15.22.6.15.32.6.15.42.6.15.52.6.15.62.6.15.72.6.162.6.16.12.6.16.102.6.16.112.6.16.122.6.16.132.6.16.142.6.16.152.6.16.162.6.16.172.6.16.182.6.16.192.6.16.22.6.16.202.6.16.212.6.16.222.6.16.232.6.16.242.6.16.252.6.16.262.6.16.272.6.16.282.6.16.292.6.16.32.6.16.302.6.16.312.6.16.322.6.16.332.6.16.342.6.16.352.6.16.362.6.16.372.6.16.382.6.16.392.6.16.42.6.16.402.6.16.412.6.16.422.6.16.432.6.16.442.6.16.452.6.16.462.6.16.472.6.16.482.6.16.492.6.16.52.6.16.502.6.16.512.6.16.522.6.16.532.6.16.542.6.16.552.6.16.562.6.16.572.6.16.582.6.16.592.6.16.62.6.16.602.6.16.612.6.16.622.6.16.72.6.16.82.6.16.92.6.172.6.17.12.6.17.102.6.17.112.6.17.122.6.17.132.6.17.142.6.17.22.6.17.32.6.17.42.6.17.52.6.17.62.6.17.72.6.17.82.6.17.92.6.182.6.18.12.6.18.22.6.18.32.6.18.42.6.18.52.6.18.62.6.18.72.6.18.82.6.192.6.19.12.6.19.22.6.19.32.6.19.42.6.19.52.6.19.62.6.19.72.6.22.6.202.6.20.12.6.20.102.6.20.112.6.20.122.6.20.132.6.20.142.6.20.152.6.20.162.6.20.172.6.20.182.6.20.192.6.20.22.6.20.202.6.20.212.6.20.32.6.20.42.6.20.52.6.20.62.6.20.72.6.20.82.6.20.92.6.212.6.21.12.6.21.22.6.21.32.6.21.42.6.21.52.6.21.62.6.21.72.6.222.6.22.12.6.22.102.6.22.112.6.22.122.6.22.132.6.22.142.6.22.152.6.22.162.6.22.172.6.22.182.6.22.192.6.22.22.6.22.32.6.22.42.6.22.52.6.22.62.6.22.72.6.22.82.6.22.92.6.232.6.23.12.6.23.102.6.23.112.6.23.122.6.23.132.6.23.142.6.23.152.6.23.162.6.23.172.6.23.22.6.23.32.6.23.42.6.23.52.6.23.62.6.23.72.6.23.82.6.23.92.6.242.6.24.12.6.24.22.6.24.32.6.24.42.6.24.52.6.24.62.6.24.72.6.252.6.25.12.6.25.102.6.25.112.6.25.122.6.25.132.6.25.142.6.25.152.6.25.162.6.25.172.6.25.182.6.25.192.6.25.22.6.25.202.6.25.32.6.25.42.6.25.52.6.25.62.6.25.72.6.25.82.6.25.92.6.262.6.26.12.6.26.22.6.26.32.6.26.42.6.26.52.6.26.62.6.26.72.6.26.82.6.272.6.27.12.6.27.102.6.27.112.6.27.122.6.27.132.6.27.142.6.27.152.6.27.162.6.27.172.6.27.182.6.27.192.6.27.22.6.27.202.6.27.212.6.27.222.6.27.232.6.27.242.6.27.252.6.27.262.6.27.272.6.27.282.6.27.292.6.27.32.6.27.302.6.27.312.6.27.42.6.27.52.6.27.62.6.27.72.6.27.82.6.27.92.6.282.6.28.12.6.28.102.6.28.22.6.28.32.6.28.42.6.28.52.6.28.62.6.28.72.6.28.82.6.28.92.6.292.6.29.12.6.29.22.6.29.32.6.29.42.6.29.52.6.29.62.6.32.6.302.6.30.12.6.30.22.6.30.32.6.30.42.6.30.52.6.31 rc12.6.31 rc22.6.31 rc32.6.42.6.52.6.62.6.72.6.82.6.8.12.6.9rc6

References (37)

x_refsource_CONFIRMExploit
Source: [email protected]
http://danwalsh.livejournal.com/30084.html
x_refsource_CONFIRM
Source: [email protected]
http://eparis.livejournal.com/606.html
x_refsource_CONFIRM
Source: [email protected]
http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git%3Ba=commit%3Bh=47d439e9fb8a81a90022cfa785bf1c36c4e2aff6
x_refsource_CONFIRM
Source: [email protected]
http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git%3Ba=commit%3Bh=7c73875e7dda627040b12c19b01db634fa7f0fd1
x_refsource_CONFIRM
Source: [email protected]
http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git%3Ba=commit%3Bh=84336d1a77ccd2c06a730ddd38e695c2324a7386
x_refsource_CONFIRM
Source: [email protected]
http://git.kernel.org/?p=linux/kernel/git/jmorris/security-testing-2.6.git%3Ba=commit%3Bh=a2551df7ec568d87793d2eea4ca744e86318f205
x_refsource_CONFIRM
Source: [email protected]
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1d9959734a1949ea4f2427bd2d8b21ede6b2441c
x_refsource_CONFIRM
Source: [email protected]
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=788084aba2ab7348257597496befcbccabdc98a3

CVSS

7.2HIGH[email protected]
Confidentiality
COMPLETE
Integrity
COMPLETE
Availability
COMPLETE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-119

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