CVE-2010-4346

Severity: low (CVSS 2.1 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: 2010-12-22 · updated 2026-06-16
Weakness: CWE-476

Description

The install_special_mapping function in mm/mmap.c in the Linux kernel before 2.6.37-rc6 does not make an expected security_file_mmap function call, which allows local users to bypass intended mmap_min_addr restrictions and possibly conduct NULL pointer dereference attacks via a crafted assembly-language application.

Affected products

Linux kernel: before 2.6.37; 2.6.37, 2.6.37-rc1, 2.6.37-rc2, 2.6.37-rc3, 2.6.37-rc4, 2.6.37-rc5 — fixed in 2.6.37

How to fix

Upgrade to a fixed version: Linux kernel 2.6.37. Check the vendor advisory for mitigations.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=462e635e5b73ba9a4c03913b77138cd57ce4b050
http://openwall.com/lists/oss-security/2010/12/09/12
http://openwall.com/lists/oss-security/2010/12/09/13
http://openwall.com/lists/oss-security/2010/12/10/2
http://openwall.com/lists/oss-security/2010/12/10/3
http://secunia.com/advisories/42570
http://secunia.com/advisories/46397
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.37-rc6
http://www.mandriva.com/security/advisories?name=MDVSA-2011:029
http://www.securityfocus.com/archive/1/520102/100/0/threaded
http://www.securityfocus.com/bid/45323
http://www.vmware.com/security/advisories/VMSA-2011-0012.html

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