PT-2022-7247 · Linux · Linux Kernel

Dan Carpenter · Published 2022-04-13 · Updated 2023-02-23 · CVE-2022-3636

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 A critical vulnerability was found in the Linux Kernel, affecting the mtk ppe check skb function of the drivers/net/ethernet/mediatek/mtk ppe.c file in the Ethernet Handler component. The manipulation leads to use after free, which can cause a denial of service.

Recommendations To fix this issue, it is recommended to apply a patch. As a temporary workaround, consider disabling the mtk ppe check skb function until a patch is available.

Fix

Use After Free

Buffer Overflow

Weakness Enumeration

CWE-416

CWE-119

Related Identifiers

BDU:2024-00867

CVE-2022-3636

DSA-5333-1

Affected Products

Linux Kernel

References · 16

• https://debian.org/security/2023/dsa-5333 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-3636 · Vendor Advisory
• https://git.kernel.org/pub/scm/linux/kernel/git/pabeni/net-next.git/commit/?id=17a5f6a78dc7b8db385de346092d7d9f9dc24df6 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-3636 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2022-3636 · Security Note
• https://ubuntu.com/security/CVE-2022-3636 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-5333-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-3636 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-00867 · Security Note
• https://vuldb.com/?id.211935 · Note
• https://t.me/cvenotify/43053 · Telegram Post
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-3636 · Note
• https://git.kernel.org/linus/17a5f6a78dc7b8db385de346092d7d9f9dc24df6 · Note
• https://xn--80ahaefyxhn.xn--j1afgaq.xn--p1ai/bin/view/%D0%9E%D0%A1%D0%BD%D0%BE%D0%B2%D0%B0/%D0%9E%D0%B1%D0%BD%D0%BE%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D1%8F/2.7 · Note
• https://t.me/cvenotify/44832 · Telegram Post