Buffer overflow in Linux Kernel
CVE-2022-3636
A vulnerability was identified in Linux Kernel 33fc42de33278b2b3ec6f3390512987bc29a62b7. This affects the function __mtk_ppe_check_skb of the file drivers/net/ethernet/mediatek/mtk_ppe.c of the component Ethernet Handler. Such manipulation leads to use after free. The name of the patch is 17a5f6a78dc7b8db385de346092d7d9f9dc24df6. It is best practice to apply a patch to resolve this issue. No released Linux Kernel version was ever affected by this CVE.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (26.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000
Affected products
- Linux Kernel — versions 33fc42de33278b2b3ec6f3390512987bc29a62b7
- Linux Kernel
- Debian Linux — versions 11.0
Weakness classification (CWE)
References
- git.kernel.org/pub/scm/linux/kernel/git/pabeni/net-next.git/commit/ (Patch, Mailing List, patch, Vendor Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Permissions Required, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (vendor-advisory, Third Party Advisory)
- vuldb.com/vuln/211935 (technical-description, vdb-entry)
- vuldb.com/vuln/211935/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2022-3636 (third-party-advisory)
- www.kernel.org/ (product)
Frequently asked questions
- What is CVE-2022-3636?
- CVE-2022-3636 is a medium-severity vulnerability in Linux Kernel, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.5/10. Published 2022-10-21.
- How severe is CVE-2022-3636?
- Medium severity. CVSS v3 base score is 5.5 out of 10.