PT-2017-2476 · Linux+5 · Linux Kernel+5

Geneblue · Published 2017-07-09 · Updated 2025-09-29 · CVE-2017-11176

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel versions through 4.11.9

Description The issue is related to the mq notify function in the Linux kernel, which does not set the sock pointer to NULL upon entry into the retry logic. This allows attackers to cause a denial of service (use-after-free) or possibly have unspecified other impact during a user-space close of a Netlink socket. The vulnerability can be exploited by a remote attacker to cause a denial of service or other impact.

Recommendations For Linux kernel versions through 4.11.9, update to a version that includes the fix for this issue. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

ALSA-2025_16880

ALT-PU-2017-1887

ALT-PU-2017-1888

BDU:2017-01686

CESA-2017_2930

CVE-2017-11176

DLA-1099-1

DSA-3927-1

DSA-3945-1

ELSA-2017-2930

ELSA-2017-2930-1

ELSA-2017-3632

ELSA-2017-3633

ELSA-2018-0169

RHSA-2017:2918

RHSA-2017:2930

RHSA-2017:2931

RHSA-2017_2930

RHSA-2017_2931

RHSA-2018:0169

RHSA-2018:3822

RHSA-2018_0169

RHSA-2018_3822

SUSE-SU-2017:2342-1

SUSE-SU-2017:2389-1

SUSE-SU-2017:2525-1

SUSE-SU-2017:2908-1

SUSE-SU-2017:2920-1

USN-3405-1

USN-3405-2

USN-3468-1

USN-3468-2

USN-3468-3

USN-3470-1

USN-3470-2

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Suse

Ubuntu

References · 415

• 🔥 https://github.com/lexfo/cve-2017-11176 · Exploit
• 🔥 https://exploit-db.com/exploits/45553 · Exploit
• https://github.com/torvalds/linux/commit/f991af3daabaecff34684fd51fac80319d1baad1 · Patch
• https://ubuntu.com/security/CVE-2017-7495 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3468-2 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-10911 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-11176 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2017:2930 · Vendor Advisory
• http://debian.org/security/2017/dsa-3927 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:2920-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3470-1 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-3945-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3468-3 · Vendor Advisory
• https://bdu.fstec.ru/vul/2017-01686 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-11176 · Vendor Advisory