CVE-2013-4516

Severity: medium (CVSS 4.9 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2013-11-12 · updated 2026-06-16
Weakness: CWE-200

Description

The mp_get_count function in drivers/staging/sb105x/sb_pci_mp.c in the Linux kernel before 3.12 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel stack memory via a TIOCGICOUNT ioctl call.

Affected products

Linux kernel: through 3.11.7; 3.0-rc1, 3.0-rc2, 3.0-rc3, 3.0-rc4, 3.0-rc5, 3.0-rc6 (+266)

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a8b33654b1e3b0c74d4a1fed041c9aae50b3c427
http://www.openwall.com/lists/oss-security/2013/11/04/22
http://www.ubuntu.com/usn/USN-2069-1
http://www.ubuntu.com/usn/USN-2070-1
http://www.ubuntu.com/usn/USN-2073-1
http://www.ubuntu.com/usn/USN-2075-1
https://github.com/torvalds/linux/commit/a8b33654b1e3b0c74d4a1fed041c9aae50b3c427
https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.12.bz2
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=a8b33654b1e3b0c74d4a1fed041c9aae50b3c427
http://www.openwall.com/lists/oss-security/2013/11/04/22
http://www.ubuntu.com/usn/USN-2069-1
http://www.ubuntu.com/usn/USN-2070-1

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