Vulnerability CVE-2016-4578

Vulnerability CVE-2016-4578

Published: 2016-05-23

Description:

sound/core/timer.c in the Linux kernel through 4.6 does not initialize certain r1 data structures, which allows local users to obtain sensitive information from kernel stack memory via crafted use of the ALSA timer interface, related to the (1) snd_timer_user_ccallback and (2) snd_timer_user_tinterrupt functions.

Type:

CWE-200

(Information Exposure)

CVSS2 => (AV:L/AC:L/Au:N/C:P/I:N/A:N)

CVSS Base Score	Impact Subscore	Exploitability Subscore
2.1/10	2.9/10	3.9/10

Exploit range	Attack complexity	Authentication
Local	Low	No required
Confidentiality impact	Integrity impact	Availability impact
Partial	None	None

Affected software
Redhat -> Enterprise linux server aus
Redhat -> Enterprise linux server eus
Redhat -> Enterprise linux server tus
Redhat -> Enterprise linux workstation
Redhat -> Enterprise linux desktop
Redhat -> Enterprise linux server
Opensuse -> LEAP
Opensuse -> Opensuse
Novell -> Suse linux enterprise debuginfo
Novell -> Suse linux enterprise desktop
Novell -> Suse linux enterprise live patching
Novell -> Suse linux enterprise module for public cloud
Novell -> Suse linux enterprise real time extension
Novell -> Suse linux enterprise server
Novell -> Suse linux enterprise software development kit
Novell -> Suse linux enterprise workstation extension
Linux -> Linux kernel
Debian -> Debian linux
Canonical -> Ubuntu linux

References:

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=9a47e9cff994f37f7f0dbd9ae23740d0f64f9fe6

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e4ec8cc8039a7063e24204299b462bd1383184a5

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/2016-06/msg00054.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00000.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00007.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00044.html

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00055.html

http://rhn.redhat.com/errata/RHSA-2016-2574.html

http://rhn.redhat.com/errata/RHSA-2016-2584.html

http://www.debian.org/security/2016/dsa-3607

http://www.openwall.com/lists/oss-security/2016/05/11/5

http://www.securityfocus.com/bid/90535

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://bugzilla.redhat.com/show_bug.cgi?id=1335215

https://github.com/torvalds/linux/commit/9a47e9cff994f37f7f0dbd9ae23740d0f64f9fe6

https://github.com/torvalds/linux/commit/e4ec8cc8039a7063e24204299b462bd1383184a5

https://www.exploit-db.com/exploits/46529/

Vulnerability CVE-2016-4578

CWE-200

CVSS2 => (AV:L/AC:L/Au:N/C:P/I:N/A:N)

2.1/10

2.9/10

3.9/10

Local

Low

No required

Partial

None

None

Affected software

References: