What is CVE-2023-2177?

CVE-2023-2177 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2023-04-20.

How severe is CVE-2023-2177?

Medium severity. CVSS v3 base score is 5.5 out of 10.

NULL pointer dereference in Linux Kernel

CVE-2023-2177

A null pointer dereference issue was found in the sctp network protocol in net/sctp/stream_sched.c in Linux Kernel. If stream_in allocation is failed, stream_out is freed which would further be accessed. A local user could use this flaw to crash the system or potentially cause a denial of service.

EPSS: 0.002 (11.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Linux Linux_kernel — versions 5.19
N/a Linux — versions Linux Kernel prior to Kernel 5.19 RC17

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

secalert@redhat.com (Patch, Mailing List, Vendor Advisory)

Frequently asked questions

What is CVE-2023-2177?: CVE-2023-2177 is a medium-severity vulnerability in Linux Kernel, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2023-04-20.
How severe is CVE-2023-2177?: Medium severity. CVSS v3 base score is 5.5 out of 10.