PT-2019-6461 · Linux+2 · Linux Kernel+2

Gen Zhang · Published 2019-05-24 · Updated 2026-03-13 · CVE-2019-12378

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 through 5.1.5

Description The issue is related to the ip6 ra control function in the net/ipv6/ipv6 sockglue.c component of the Linux kernel, which is associated with errors in pointer dereferencing. Exploitation of this issue may allow an attacker to cause a denial of service, resulting in a system crash due to a NULL pointer dereference. It is noted that the validity of this issue has been disputed.

Recommendations For Linux kernel versions through 5.1.5, consider applying configuration changes or workarounds to minimize the risk of exploitation, such as restricting access to the ip6 ra control function until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALT-PU-2019-2024

ALT-PU-2019-2036

ALT-PU-2019-2120

ALT-PU-2019-2311

ALT-PU-2020-1198

ALT-PU-2020-1501

ALT-PU-2020-2410

ALT-PU-2020-2433

ALT-PU-2021-1870

BDU:2024-09048

CVE-2019-12378

ECHO-BC65-4AAC-5F72

Affected Products

Alt Linux

Debian

Linux Kernel

References · 19

• https://ubuntu.com/security/CVE-2019-12378 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2019-4729.html · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KLGWJKLMTBBB53D5QLS4HOY2EH246WBE · Vendor Advisory
• https://lkml.org/lkml/2019/5/25/229 · Patch
• https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=95baa60a0da80a0143e3ddd4d3725758b4513825 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-09048 · Security Note
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20241017SE16 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2019-12378 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-12378 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2019-12378 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-13-CVE-2019-12378 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/J36BIJTKEPUOZKJNHQBUZA47RQONUKOI · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-12-CVE-2019-12378 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2019-4746.html · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2019-12378 · Vendor Advisory