Select your cookie preferences

We use cookies and similar tools to enhance your experience, provide our services, deliver relevant advertising, and make improvements. Approved third parties also use these tools to help us deliver advertising and provide certain site features.

CVE-2023-31248

Public on 2023-07-05
Modified on 2024-03-01
Description

Linux Kernel nftables Use-After-Free Local Privilege Escalation Vulnerability; `nft_chain_lookup_byid()` failed to check whether a chain was active and CAP_NET_ADMIN is in any user or network namespace

Severity
Important
See what this means
CVSS v3 Base Score
7.8
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Kernel-5.10 Extra kernel 2023-07-14 23:38 ALAS2KERNEL-5.10-2023-037
Amazon Linux 2 - Kernel-5.15 Extra kernel 2023-07-14 23:38 ALAS2KERNEL-5.15-2023-024
Amazon Linux 2023 kernel 2023-07-17 20:45 ALAS2023-2023-251

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD CVSSv3 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Red Hat: CVE-2023-31248 Mitre: CVE-2023-31248 FAQs regarding Amazon Linux ALAS/CVE Severity