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CVE-2023-1095

Public on 2023-02-28
Modified on 2024-04-02
Description

In nf_tables_updtable, if nf_tables_table_enable returns an error, nft_trans_destroy is called to free the transaction object. nft_trans_destroy() calls list_del(), but the transaction was never placed on a list -- the list head is all zeroes, this results in a NULL pointer dereference.

Severity
Medium
See what this means
CVSS v3 Base Score
5.5
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Core kernel 2022-09-01 21:09 ALAS2-2022-1838
Amazon Linux 2 - Kernel-5.10 Extra kernel 2022-09-30 07:10 ALAS2KERNEL-5.10-2022-020
Amazon Linux 2 - Kernel-5.15 Extra kernel 2022-09-30 07:10 ALAS2KERNEL-5.15-2022-008
Amazon Linux 2 - Kernel-5.4 Extra kernel 2022-09-30 07:10 ALAS2KERNEL-5.4-2022-036

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Red Hat: CVE-2023-1095 Mitre: CVE-2023-1095 FAQs regarding Amazon Linux ALAS/CVE Severity