CVE-2016-9806

HIGH

Linux Kernel < 3.12.62 - Race Condition

Title source: rule

Description

Race condition in the netlink_dump function in net/netlink/af_netlink.c in the Linux kernel before 4.6.3 allows local users to cause a denial of service (double free) or possibly have unspecified other impact via a crafted application that makes sendmsg system calls, leading to a free operation associated with a new dump that started earlier than anticipated.

References (12)

[Patch, Vendor Advisory] http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=92964c79b357efd980812c4de5c1fd2ec8bb5520

[Mailing List, Third Party Advisory] http://lists.openwall.net/netdev/2016/05/15/69

[Release Notes, Vendor Advisory] http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.6.3

[Mailing List, Patch, Third Party Advisory] http://www.openwall.com/lists/oss-security/2016/12/03/4

[Third Party Advisory, VDB Entry] http://www.securityfocus.com/bid/94653

[Third Party Advisory, VDB Entry] http://www.securitytracker.com/id/1037968

[Third Party Advisory] https://access.redhat.com/errata/RHSA-2017:1842

[Third Party Advisory] https://access.redhat.com/errata/RHSA-2017:2077

[Third Party Advisory] https://access.redhat.com/errata/RHSA-2017:2669

[Issue Tracking, Patch] https://bugzilla.redhat.com/show_bug.cgi?id=1401502

[Patch, Third Party Advisory] https://github.com/torvalds/linux/commit/92964c79b357efd980812c4de5c1fd2ec8bb5520

View Patch ZIP pw:eip

[Third Party Advisory] https://source.android.com/security/bulletin/2017-03-01.html

Scores

CVSS v3 7.8

EPSS 0.0003

EPSS Percentile 7.5%

Attack Vector LOCAL

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

Classification

CWE

CWE-415 CWE-362

Status draft

Affected Products (1)

linux/linux_kernel < 3.12.62

Timeline

Published Dec 28, 2016

Tracked Since Feb 18, 2026