PT-2013-5054 · Linux+2 · Linux Kernel+2

Fabian Yamaguchi + 1 · Published 2013-11-12 · Updated 2023-02-13 · CVE-2013-4515

Positive Technologies (AI Summary)

CVSS v2.0

4.9

Medium

Base vector

AV:L/AC:L/Au:N/C:C/I:N/A:N

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 3.12

Description The issue allows local users to obtain sensitive information from kernel memory. This is due to the bcm char ioctl function in drivers/staging/bcm/Bcmchar.c not initializing a certain data structure, which can be exploited via an IOCTL BCM GET DEVICE DRIVER INFO ioctl call.

Recommendations For versions prior to 3.12, update to version 3.12 or later to resolve the issue. As a temporary workaround, consider restricting access to the bcm char ioctl function until a patch is available.

Exploit

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

ALT-PU-2013-1133

ALT-PU-2014-1422

CVE-2013-4515

OPENSUSE-SU-2014_0204-1

SUSE-RU-2015:0621-1

SUSE-SU-2015:0481-1

SUSE-SU-2015:0581-1

SUSE-SU-2015:0736-1

SUSE-SU-2015:1174-1

SUSE-SU-2015:1376-1

USN-2066-1

USN-2067-1

USN-2068-1

USN-2069-1

USN-2070-1

USN-2071-1

USN-2072-1

USN-2073-1

USN-2074-1

USN-2075-1

USN-2076-1

Affected Products

Alt Linux

Linux Kernel

Suse

References · 238

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/local/recvmmsg_priv_esc.rb · Exploit
• 🔥 https://github.com/saelo/cve-2014-0038 · Exploit
• 🔥 https://github.com/luan0ap/cve-2018-14634 · Exploit
• https://github.com/torvalds/linux/commit/8d1e72250c847fa96498ec029891de4dc638a5ba · Patch
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2892 · Security Note
• http://ubuntu.com/usn/USN-2074-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8173 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9870 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2896 · Security Note
• https://bdu.fstec.ru/vul/2016-02003 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3645 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2888 · Security Note
• https://kernel.org/pub/linux/kernel/v3.x/patch-3.12.bz2 · Patch
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2929 · Security Note
• https://bdu.fstec.ru/vul/2014-00098 · Security Note