PT-2013-1020 · Linux+4 · Linux Kernel+4

Mathias Krause · Published 2013-03-14 · Updated 2013-11-24 · CVE-2012-6547

Positive Technologies (AI Summary)

CVSS v2.0

1.9

Low

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 3.6

Description The issue exists in the tun chr ioctl function in drivers/net/tun.c due to the lack of initialization of certain structures. This allows local users to obtain sensitive information from kernel stack memory via a crafted application.

Recommendations For Linux kernel versions prior to 3.6, update to version 3.6 or later to resolve the issue. At the moment, there is no information about additional mitigation measures for this vulnerability.

Exploit

Fix

Information Disclosure

RCE

Weakness Enumeration

CWE-200

CWE-20

Related Identifiers

ALT-PU-2013-1178

BDU:2014-00080

CESA-2013_0744

CVE-2012-6547

RHSA-2013:0744

RHSA-2013:0747

RHSA-2013_0744

RHSA-2013_0747

SUSE-SU-2015:0652-1

USN-1554-1

USN-1558-1

USN-1563-1

USN-1579-1

USN-1580-1

USN-1651-1

USN-1653-1

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Suse

References · 27

• 🔥 https://github.com/tempbottle/CVE-2014-0196 · Exploit
• https://bdu.fstec.ru/vul/2014-00080 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2012-6547 · Vendor Advisory
• https://kernel.org/pub/linux/kernel/v3.x/patch-3.6.bz2 · Patch
• https://ubuntu.com/security/notices/USN-1563-1 · Vendor Advisory
• http://mandriva.com/security/advisories?name=MDVSA-2013:176 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1554-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2012-6547 · Security Note
• https://ubuntu.com/security/CVE-2012-6547 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1580-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2012-6547 · Security Note
• https://ubuntu.com/security/notices/USN-1651-1 · Vendor Advisory
• http://rhn.redhat.com/errata/RHSA-2013-0744.html · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1558-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-1579-1 · Vendor Advisory