CVE-2016-4580 Information

Description

The x25_negotiate_facilities function in net/x25/x25_facilities.c in the Linux kernel before 4.5.5 does not properly initialize a certain data structure which allows attackers to obtain sensitive information from kernel stack memory via an X.25 Call Request.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Reference

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=79e48650320e6fba48369fccf13fd045315b19b8 http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00052.html http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html http://www.debian.org/security/2016/dsa-3607 http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.5.5 http://www.openwall.com/lists/oss-security/2016/05/10/12 http://www.securityfocus.com/bid/90528 http://www.ubuntu.com/usn/USN-3016-1 http://www.ubuntu.com/usn/USN-3016-2 http://www.ubuntu.com/usn/USN-3016-3 http://www.ubuntu.com/usn/USN-3016-4 http://www.ubuntu.com/usn/USN-3017-1 http://www.ubuntu.com/usn/USN-3017-2 http://www.ubuntu.com/usn/USN-3017-3 http://www.ubuntu.com/usn/USN-3018-1 http://www.ubuntu.com/usn/USN-3018-2 http://www.ubuntu.com/usn/USN-3019-1 http://www.ubuntu.com/usn/USN-3020-1 http://www.ubuntu.com/usn/USN-3021-1 http://www.ubuntu.com/usn/USN-3021-2 https://github.com/torvalds/linux/commit/79e48650320e6fba48369fccf13fd045315b19b8

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

7.5