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CVE-2012-6538

Date: March 14, 2013

The copy_to_user_auth function in net/xfrm/xfrm_user.c in the Linux kernel before 3.6 uses an incorrect C library function for copying a string, which allows local users to obtain sensitive information from kernel heap memory by leveraging the CAP_NET_ADMIN capability.

Language: C

Severity Score

Related Resources (9)

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4c87308bdea31a7b4828a51f6156e6f721a1fcc9
http://rhn.redhat.com/errata/RHSA-2013-0744.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2012-6538
https://www.kernel.org/pub/linux/kernel/v3.x/patch-3.6.bz2
https://github.com/torvalds/linux/commit/4c87308bdea31a7b4828a51f6156e6f721a1fcc9
https://nvd.nist.gov/vuln/detail/CVE-2012-6538
http://www.openwall.com/lists/oss-security/2013/03/05/13
https://access.redhat.com/security/cve/CVE-2012-6538
https://www.mend.io/vulnerability-database/CVE-2012-6538

Severity Score

Weakness Type (CWE)

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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