PT-2025-8321 · Linux+1 · Linux Kernel+1

Published 2025-02-26 · Updated 2025-03-01 · CVE-2022-49387

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 A 32bit overflow issue has been identified in the Linux kernel, specifically in the watchdog component rzg2l wdt. The issue arises when the value of timer cycle us can be 0 due to the overflow. This occurs when computing maxval with a counter value such as 0xfff. The problem is resolved by appending ULL to 1024, promoting it to 64bit, which also fixes a warning message related to invalid min and max timeout values.

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

Exploit

Integer Overflow

Weakness Enumeration

CWE-190

Related Identifiers

CVE-2022-49387

Affected Products

Astra Linux

Linux Kernel

References · 14

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49387.json · Exploit
• https://git.kernel.org/stable/c/e07b9fa0dc32b492de85528caaf9f0c605d8424f · Patch
• https://osv.dev/vulnerability/CVE-2022-49387 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-49387 · Vendor Advisory
• https://git.kernel.org/stable/c/ea2949df22a533cdf75e4583c00b1ce94cd5a83b · Patch
• https://cve.org/CVERecord?id=CVE-2022-49387 · Security Note
• https://git.kernel.org/stable/c/b95a47667d34e76c2c9013f8e3b1e5039a5a0b76 · Patch
• https://ubuntu.com/security/CVE-2022-49387 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49387 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49387 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49387 · Vendor Advisory
• https://twitter.com/CVEnew/status/1895982064031449451 · Twitter Post
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note
• https://git.kernel.org/linus/ea2949df22a533cdf75e4583c00b1ce94cd5a83b · Note