PT-2024-7724 · Linux+3 · Linux Kernel+3

Syzbot + 1 · Published 2024-02-19 · Updated 2025-02-03 · CVE-2024-26849

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 netlink component of the Linux kernel, where the validation code reads past a malformed attribute due to a missing size in the minlen array for NLA BE32. This can lead to an uninit-value bug, potentially causing a denial of service. The vulnerability is associated with the nla validate range unsigned, nla validate int range, and validate nla functions in lib/nlattr.c. Other attributes like BITFIELD32, SINT, and UINT are also missing from the minlen array and should be added.

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

Exploit

Use of Uninitialized Resource

Weakness Enumeration

CWE-908

Related Identifiers

BDU:2024-09187

CVE-2024-26849

SUSE-SU-2024:3194-1

SUSE-SU-2024:3195-1

SUSE-SU-2024:3383-1

SUSE-SU-2025:20044-1

SUSE-SU-2025:20047-1

Affected Products

Astra Linux

Linux Kernel

Red Os

Suse

References · 925

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26849.json · Exploit
• https://git.kernel.org/stable/c/7a9d14c63b35f89563c5ecbadf918ad64979712d · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2024-26849 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2024-26849 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:3383-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2024:3195-1 · Vendor Advisory
• https://git.kernel.org/stable/c/0ac219c4c3ab253f3981f346903458d20bacab32 · Patch
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-26849 · Vendor Advisory
• https://git.kernel.org/stable/c/9a0d18853c280f6a0ee99f91619f2442a17a323a · Patch
• https://cve.org/CVERecord?id=CVE-2024-26849 · Security Note
• https://osv.dev/vulnerability/CVE-2024-26849 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2024-26849 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:20044-1 · Vendor Advisory
• https://git.kernel.org/stable/c/a2ab028151841cd833cb53eb99427e0cc990112d · Patch
• https://osv.dev/vulnerability/SUSE-SU-2025:20047-1 · Vendor Advisory