PT-2016-2675 · Linux · Linux-Image+1

Marcin Szewczyk · Published 2016-08-31 · Updated 2016-11-28 · CVE-2016-7118

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-image package version 3.2.0-4 (kernel 3.2.81-1)

Description The issue is related to the mishandling of F SETFL fcntl calls on directories in the fs/fcntl.c file of the "aufs 3.2.x+setfl-debian" patch. This can be exploited by local users to cause a denial of service, resulting in a NULL pointer dereference and system crash, through standard filesystem operations.

Recommendations For linux-image package version 3.2.0-4 (kernel 3.2.81-1), consider applying a patch to fix the issue in the fs/fcntl.c file to prevent the NULL pointer dereference and system crash. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2016-02067

CVE-2016-7118

DLA-609-1

Affected Products

Kernel

Linux-Image

References · 10

• https://osv.dev/vulnerability/UBUNTU-CVE-2016-7118 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-7118 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-7118 · Security Note
• https://ubuntu.com/security/CVE-2016-7118 · Vendor Advisory
• https://bdu.fstec.ru/vul/2016-02067 · Security Note
• https://cve.org/CVERecord?id=CVE-2016-7118 · Security Note
• http://openwall.com/lists/oss-security/2016/08/31/1 · Note
• http://seclists.org/oss-sec/2016/q3/395 · Note
• http://openwall.com/lists/oss-security/2016/08/31/3 · Note
• http://securityfocus.com/bid/92697 · Note