PT-2016-7538 · Linux+4 · Linux Kernel+4

Harsh Jain · Published 2016-01-13 · Updated 2023-02-12 · CVE-2016-8646

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 4.3.6

Description The issue allows local users to cause a denial of service by attempting to trigger use of in-kernel hash algorithms for a socket that has received zero bytes of data. This is related to the hash accept function in crypto/algif hash.c.

Recommendations For Linux kernel versions prior to 4.3.6, update to version 4.3.6 or later to resolve the issue.

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2016-1018

ALT-PU-2016-1485

CESA-2017_1308

CVE-2016-8646

OPENSUSE-SU-2016_3058-1

OPENSUSE-SU-2016_3061-1

RHSA-2017:1297

RHSA-2017:1298

RHSA-2017:1308

RHSA-2017_1298

RHSA-2017_1308

SUSE-SU-2017:0333-1

SUSE-SU-2017:0437-1

SUSE-SU-2017:0494-1

SUSE-SU-2017:1102-1

Affected Products

Alt Linux

Centos

Linux Kernel

Red Hat

Suse

References · 288

• https://github.com/torvalds/linux/commit/4afa5f9617927453ac04b24b584f6c718dfb4f45 · Patch
• https://ubuntu.com/security/CVE-2016-8646 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2016-8646 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:0494-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-8646 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2017-3515.html · 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://access.redhat.com/errata/RHSA-2017:1298 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:0333-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2017-1308-1.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-8646 · Security Note
• https://cve.org/CVERecord?id=CVE-2016-8646 · Security Note
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4afa5f9617927453ac04b24b584f6c718dfb4f45 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-8646 · Vendor Advisory