CVE-2012-6537

Severity: low (CVSS 1.9 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: 2013-03-15 · updated 2026-06-16
Weakness: CWE-200

Description

net/xfrm/xfrm_user.c in the Linux kernel before 3.6 does not initialize certain structures, which allows local users to obtain sensitive information from kernel memory by leveraging the CAP_NET_ADMIN capability.

Affected products

Linux kernel: through 3.5.7; 3.0-rc1, 3.0-rc2, 3.0-rc3, 3.0-rc4, 3.0-rc5, 3.0-rc6 (+183)
Red Hat Enterprise Linux: 5, 6.0

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1f86840f897717f86d523a13e99a447e6a5d2fa5
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7b789836f434c87168eab067cfbed1ec4783dffd
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=f778a636713a435d3a922c60b1622a91136560c1
http://rhn.redhat.com/errata/RHSA-2013-0744.html
http://www.openwall.com/lists/oss-security/2013/03/05/13
http://www.ubuntu.com/usn/USN-1792-1
http://www.ubuntu.com/usn/USN-1798-1
https://github.com/torvalds/linux/commit/1f86840f897717f86d523a13e99a447e6a5d2fa5
https://github.com/torvalds/linux/commit/7b789836f434c87168eab067cfbed1ec4783dffd
https://github.com/torvalds/linux/commit/f778a636713a435d3a922c60b1622a91136560c1
https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.6.bz2
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1f86840f897717f86d523a13e99a447e6a5d2fa5

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