CVE-2013-0309

Severity: medium (CVSS 4.7 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2013-02-22 · updated 2026-06-16
Weakness: CWE-119

Description

arch/x86/include/asm/pgtable.h in the Linux kernel before 3.6.2, when transparent huge pages are used, does not properly support PROT_NONE memory regions, which allows local users to cause a denial of service (system crash) via a crafted application.

Affected products

Linux kernel: through 3.6.1; 3.0-rc1, 3.0-rc2, 3.0-rc3, 3.0-rc4, 3.0-rc5, 3.0-rc6 (+149)
Red Hat Enterprise Linux: 6.0

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=027ef6c87853b0a9df53175063028edb4950d476
http://rhn.redhat.com/errata/RHSA-2013-0496.html
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.6.2
http://www.openwall.com/lists/oss-security/2013/02/20/4
https://bugzilla.redhat.com/show_bug.cgi?id=912898
https://github.com/torvalds/linux/commit/027ef6c87853b0a9df53175063028edb4950d476
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=027ef6c87853b0a9df53175063028edb4950d476
http://rhn.redhat.com/errata/RHSA-2013-0496.html
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.6.2
http://www.openwall.com/lists/oss-security/2013/02/20/4
https://bugzilla.redhat.com/show_bug.cgi?id=912898
https://github.com/torvalds/linux/commit/027ef6c87853b0a9df53175063028edb4950d476

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