PT-2024-8306 · Linux+4 · Linux Kernel+4

Published 2024-04-19 · Updated 2024-11-07 · CVE-2024-26936

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The issue is related to errors in reading beyond the allocated buffer memory in the smb2 allocate rsp buf() function of the ksmbd component. This can lead to a denial of service. The response buffer should be allocated before validating the request, but fields in the payload and smb2 header are used before this allocation, potentially causing out-of-bounds access. A patch adds simple buffer size validation to avoid this issue.

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

Exploit

Out of bounds Read

Buffer Overflow

Weakness Enumeration

CWE-125

CWE-120

Related Identifiers

BDU:2024-09859

CVE-2024-26936

DSA-5680-1

MGASA-2024-0263

MGASA-2024-0266

OESA-2024-1737

OESA-2024-1738

USN-6893-1

USN-6893-2

USN-6893-3

USN-6918-1

USN-6950-1

USN-6950-2

USN-6950-3

USN-6950-4

USN-6956-1

USN-6957-1

USN-7019-1

Affected Products

Astra Linux

Linuxmint

Linux Kernel

Red Os

Ubuntu

References · 662

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26936.json · Exploit
• 🔥 https://github.com/MaherAzzouzi/CVE-2024-26817-amdkfd · Exploit
• https://ubuntu.com/security/CVE-2024-35984 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-40957 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-27019 · Security Note
• https://ubuntu.com/security/CVE-2024-26999 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-6957-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-40984 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26817 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-35954 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-35968 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-27398 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-42127 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-41002 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26973 · Vendor Advisory