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-2023-3390

Public on 2023-06-28
Modified on 2024-01-11
Description

A use-after-free vulnerability was found in the Linux kernel's netfilter subsystem in net/netfilter/nf_tables_api.c.

Mishandled error handling with NFT_MSG_NEWRULE makes it possible to use a dangling pointer in the same transaction causing a use-after-free vulnerability. This flaw allows a local attacker with user access to cause a privilege escalation issue.

We recommend upgrading past commit 1240eb93f0616b21c675416516ff3d74798fdc97.

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

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 kernel 2023-09-13 23:15 ALAS-2023-1827
Amazon Linux 2 - Core kernel 2023-09-27 22:48 ALAS2-2023-2268
Amazon Linux 2 - Kernel-5.10 Extra kernel 2023-08-31 22:50 ALAS2KERNEL-5.10-2023-039
Amazon Linux 2 - Kernel-5.15 Extra kernel 2023-07-14 23:38 ALAS2KERNEL-5.15-2023-024
Amazon Linux 2 - Kernel-5.4 Extra kernel 2023-07-14 23:38 ALAS2KERNEL-5.4-2023-049
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