PT-2024-8448 · Linux+4 · Linux Kernel+4

Published 2024-02-12 · Updated 2024-11-07 · CVE-2024-27390

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 (affected versions not specified)

Description The issue is related to the removal of a synchronize net() barrier in the ipv6 mc down() function in the Linux kernel's ipv6 mcast component. This change was made because the synchronize net() call was deemed unnecessary, as discussed in a past commit. Under load, the synchronize net() function can take between 200 usec and 5 ms. The KASAN (Kernel Address Sanitizer) agrees with this assessment. The vulnerability is associated with resource management errors in the ipv6 mc down() function, which could potentially allow an attacker to cause a denial of service.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Weakness Enumeration

CWE-399

Related Identifiers

BDU:2024-10008

CVE-2024-27390

USN-6816-1

USN-6817-1

USN-6817-2

USN-6817-3

USN-6820-1

USN-6820-2

USN-6821-1

USN-6821-2

USN-6821-3

USN-6821-4

USN-6828-1

USN-6871-1

USN-6878-1

USN-6892-1

USN-6919-1

Affected Products

Astra Linux

Linuxmint

Linux Kernel

Red Os

Ubuntu

References · 573

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/27xxx/CVE-2024-27390.json · Exploit
• https://ubuntu.com/security/CVE-2024-35984 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-27048 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52642 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26698 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26999 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52644 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26817 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26601 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26751 · Vendor Advisory
• https://git.kernel.org/stable/c/17ef8efc00b34918b966388b2af0993811895a8c · Patch
• https://ubuntu.com/security/CVE-2024-35811 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26954 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26968 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26973 · Vendor Advisory