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CVE-2023-2177

Public on 2023-04-19
Modified on 2024-03-06
Description

A NULL pointer dereference issue was found in the SCTP network protocol in net/sctp/stream_sched.c in the Linux kernel. If stream_in allocation fails, stream_out is freed, which would be accessed further. This flaw allows a local user to crash the system or potentially cause a denial of service.

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

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 2 - Kernel-5.10 Extra kernel 2022-08-15 21:23 ALAS2KERNEL-5.10-2022-019
Amazon Linux 2 - Kernel-5.15 Extra kernel 2022-09-08 22:14 ALAS2KERNEL-5.15-2022-007
Amazon Linux 2 - Kernel-5.4 Extra kernel 2022-08-15 21:23 ALAS2KERNEL-5.4-2022-034
Amazon Linux 2023 kernel 2023-02-17 20:46 ALAS2023-2023-070

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-2023-2177 Mitre: CVE-2023-2177 FAQs regarding Amazon Linux ALAS/CVE Severity