PT-2024-6943 · Linux · Linux Kernel

Hao Ge · Published 2024-07-16 · Updated 2024-09-06 · CVE-2024-42255

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 tpm buf check hmac response() function in the Linux kernel's Trusted Platform Module (TPM) driver. It involves a null pointer dereference when TCG TPM2 HMAC is enabled and tpm2 sessions init() has not been called. This can lead to a denial of service.

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

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

BDU:2024-08185

CVE-2024-42255

Affected Products

Linux Kernel

References · 17

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/42xxx/CVE-2024-42255.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2024-42255 · Security Note
• https://git.kernel.org/stable/c/7dc357d343f134bf59815ff6098b93503ec8a23b · Patch
• https://security-tracker.debian.org/tracker/CVE-2024-42255 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2024-42255 · Vendor Advisory
• https://git.kernel.org/stable/c/b9afbb9a0c734197c59c43610071041044bf1562 · Patch
• https://osv.dev/vulnerability/BELL-CVE-2024-42255 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-42255 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-08185 · Security Note
• https://ubuntu.com/security/CVE-2024-42255 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2024-42255 · Security Note
• https://docs.bell-sw.com/security/cves/CVE-2024-42255 · Note
• https://git.kernel.org/linus/7dc357d343f134bf59815ff6098b93503ec8a23b · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://lore.kernel.org/linux-cve-announce/2024080819-CVE-2024-42255-b73c@gregkh · Note