CVE-2011-2707 - Dewlapped Pans

Description

The ptrace_setxregs function in arch/xtensa/kernel/ptrace.c in the Linux kernel before 3.1 does not validate user-space pointers which allows local users to obtain sensitive information from kernel memory locations via a crafted PTRACE_SETXTREGS request.

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H

Reference

https://github.com/torvalds/linux/commit/0d0138ebe24b94065580bd2601f8bb7eb6152f56 http://www.openwall.com/lists/oss-security/2011/07/20/18 http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0d0138ebe24b94065580bd2601f8bb7eb6152f56 http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

HIGH

Base Severity

6.0