PT-2016-2919 · Linux+3 · Linux Kernel+3

Andrey Konovalov · Published 2016-12-08 · Updated 2023-01-24 · CVE-2016-9919

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.8.12

Description The issue exists due to insufficient input validation in the icmp6 send function. Exploitation of this issue may allow a remote attacker to cause a denial of service using a specially crafted fragmented IPv6 packet. The icmp6 send function in net/ipv6/icmp.c omits a certain check of the dst data structure.

Recommendations For Linux kernel versions prior to 4.8.12, update to version 4.8.12 or later to resolve the issue. As a temporary workaround, consider restricting access to the icmp6 send function to minimize the risk of exploitation.

Fix

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALT-PU-2017-1050

BDU:2016-02350

CVE-2016-9919

OPENSUSE-SU-2017_0456-1

SUSE-SU-2017:0181-1

USN-3170-2

Affected Products

Alt Linux

Linux Kernel

Suse

Ubuntu

References · 169

• https://github.com/torvalds/linux/commit/79dc7e3f1cd323be4c81aa1a94faa1b3ed987fb2 · Patch
• http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=79dc7e3f1cd323be4c81aa1a94faa1b3ed987fb2 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2016-9919 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-9919 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2017:0181-1 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3170-2 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2016-9919 · Vendor Advisory
• https://ubuntu.com/security/CVE-2016-9919 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2016-9919 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-9919 · Security Note
• https://bdu.fstec.ru/vul/2016-02350 · Security Note
• https://cve.org/CVERecord?id=CVE-2016-9919 · Security Note
• https://bugzilla.suse.com/1001888 · Note
• https://bugzilla.suse.com/1010507 · Note
• https://suse.com/security/cve/CVE-2016-9919 · Note