SB2013111210 - Information disclosure in Linux kernel
Published: November 12, 2013 Updated: August 10, 2020
Security Bulletin ID
SB2013111210
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Information disclosure (CVE-ID: CVE-2013-4516)
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
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.
Remediation
Install update from vendor's website.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=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