CVE-2016-2549

MEDIUM

Linux Kernel < 4.4 - Improper Input Validation

Title source: rule

Description

sound/core/hrtimer.c in the Linux kernel before 4.4.1 does not prevent recursive callback access, which allows local users to cause a denial of service (deadlock) via a crafted ioctl call.

References (19)

[Vendor Advisory] http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.4.1

[Vendor Advisory] http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2ba1fe7a06d3624f9a7586d672b55f08f7c670f3

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/83382

[Vendor Advisory] http://www.ubuntu.com/usn/USN-2929-1

[Vendor Advisory] http://www.ubuntu.com/usn/USN-2929-2

[Vendor Advisory] http://www.ubuntu.com/usn/USN-2930-1

[Vendor Advisory] http://www.ubuntu.com/usn/USN-2930-2

[Vendor Advisory] http://www.ubuntu.com/usn/USN-2930-3

[Vendor Advisory] http://www.ubuntu.com/usn/USN-2931-1

[Vendor Advisory] http://www.ubuntu.com/usn/USN-2932-1

[Vendor Advisory] http://www.ubuntu.com/usn/USN-2967-1

[Vendor Advisory] http://www.ubuntu.com/usn/USN-2967-2

[Issue Tracking] https://bugzilla.redhat.com/show_bug.cgi?id=1311570

[Patch] https://github.com/torvalds/linux/commit/2ba1fe7a06d3624f9a7586d672b55f08f7c670f3

[Third Party Advisory] http://www.debian.org/security/2016/dsa-3503

[Mailing List] http://www.openwall.com/lists/oss-security/2016/01/19/1

[Mailing List] http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html

[Mailing List] http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html

[Mailing List] http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html

Scores

CVSS v3 6.2

EPSS 0.0007

EPSS Percentile 21.7%

Attack Vector LOCAL

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

Classification

CWE

CWE-20

Status draft

Affected Products (1)

linux/linux_kernel < 4.4

Timeline

Published Apr 27, 2016

Tracked Since Feb 18, 2026