PT-2022-7427 · Linux+3 · Linux Kernel+3

David Pinilla Caparros · Published 2022-02-14 · Updated 2024-08-22 · CVE-2022-48785

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 5.15.19-cloudflare-2022.2.1

Description The vulnerability is related to the mld newpack() function in the net/ipv6/mcast.c module of the Linux kernel's IPv6 implementation. It is caused by incorrect synchronization, which can lead to a denial of service. The issue arises from the use of an rcu-unsafe version of ipv6 get lladdr() after external locks were removed. This can result in a general protection fault and cause the machine to crash or stall.

Recommendations To resolve the issue, update the Linux kernel to a version that includes the fix for the ipv6: mcast: use rcu-safe version of ipv6 get lladdr() vulnerability. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Locking

Weakness Enumeration

CWE-667

Related Identifiers

BDU:2024-06075

CVE-2022-48785

OPENSUSE-SU-2024_2947-1

SUSE-SU-2024:2894-1

SUSE-SU-2024:2939-1

SUSE-SU-2024:2947-1

Affected Products

Astra Linux

Linux Kernel

Red Os

Suse

References · 1219

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48785.json · Exploit
• https://git.kernel.org/stable/c/26394fc118d6115390bd5b3a0fb17096271da227 · Patch
• https://git.kernel.org/stable/c/3e11ef1903cf6c2fba35594b193a3570854d9e9e · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-48785 · Vendor Advisory
• https://git.kernel.org/stable/c/27f567c84f446048670376827e356f9c92033bf9 · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:2894-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2939-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-48785 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-48785 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-48785 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-48785 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:2947-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-48785 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-06075 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-48785 · Security Note