CVE-2023-3106NULL Pointer Dereference in Kernel

Severity
7.8HIGHNVD
EPSS
0.0%
top 98.39%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedJul 12

Description

A NULL pointer dereference vulnerability was found in netlink_dump. This issue can occur when the Netlink socket receives the message(sendmsg) for the XFRM_MSG_GETSA, XFRM_MSG_GETPOLICY type message, and the DUMP flag is set and can cause a denial of service or possibly another unspecified impact. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although it is unlikely.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages3 packages

debiandebian/linux< linux 4.8.5-1 (bookworm)
NVDlinux/linux_kernel3.153.16.39+3
Debianlinux/linux_kernel< 4.8.5-1+3

Also affects: Fedora 38

Patches

🔴Vulnerability Details

2
OSV
CVE-2023-3106: A NULL pointer dereference vulnerability was found in netlink_dump2023-07-12
GHSA
GHSA-f28c-5rx3-m73f: A NULL pointer dereference vulnerability was found in netlink_dump2023-07-12

📋Vendor Advisories

2
Debian
CVE-2023-3106: linux - A NULL pointer dereference vulnerability was found in netlink_dump. This issue c...2023
Red Hat
kernel: Netlink socket crash (null pointer deref) in netlink_dump function2016-07-18