PT-2016-7812 · Linux+4 · Linux Kernel+4

Adam Mariš + 1 · Published 2016-04-13 · Updated 2018-01-05 · CVE-2016-9685

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.5.1

Description The issue is related to multiple memory leaks in error paths in the fs/xfs/xfs attr list.c file. This can be exploited by local users through crafted XFS filesystem operations, leading to a denial of service due to memory consumption.

Recommendations For Linux kernel versions prior to 4.5.1, update to version 4.5.1 or later to resolve the issue. As a temporary workaround, consider restricting access to XFS filesystem operations to minimize the risk of exploitation.

Fix

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

ALT-PU-2016-1331

ALT-PU-2017-1330

CESA-2017_1842

CVE-2016-9685

RHSA-2017:1842

RHSA-2017:2077

RHSA-2017:2669

RHSA-2017_1842

RHSA-2017_2077

SUSE-SU-2017:0333-1

SUSE-SU-2017:0437-1

SUSE-SU-2017:0494-1

SUSE-SU-2017:1102-1

USN-3187-1

USN-3187-2

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Suse

References · 288

• https://github.com/torvalds/linux/commit/2e83b79b2d6c78bf1b4aa227938a214dcbddc83f · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-9685 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2017-3607.html · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2017:2077 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2017-3606.html · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3187-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-9685 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:0494-1 · Vendor Advisory
• http://openwall.com/lists/oss-security/2016/11/30/1 · Patch
• https://cve.org/CVERecord?id=CVE-2016-9685 · Security Note
• https://osv.dev/vulnerability/CVE-2016-9685 · Vendor Advisory
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2e83b79b2d6c78bf1b4aa227938a214dcbddc83f · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:1102-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:0437-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2016-9685 · Vendor Advisory