What is CVE-2023-0687?

CVE-2023-0687 is a medium-severity vulnerability in Gnu C Library, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 4.6/10. Published 2023-02-06.

How severe is CVE-2023-0687?

Medium severity. CVSS v3 base score is 4.6 out of 10.

Buffer overflow in Gnu C Library

CVE-2023-0687

A vulnerability was found in GNU C Library 2.38. It has been declared as critical. This vulnerability affects the function __monstartup of the file gmon.c of the component Call Graph Monitor. The manipulation leads to buffer overflow. It is recommended to apply a patch to fix this issue. VDB-220246 is the identifier assigned to this vulnerability. NOTE: The real existence of this vulnerability is still doubted at the moment. The inputs that induce this vulnerability are basically addresses of the running application that is built with gmon enabled. It's basically trusted input or input that needs an actual security flaw to be compromised or controlled.

Vulnerability class: Buffer Overflow

EPSS: 0.011 (62.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.6 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Gnu C Library — versions 2.38
Gnu Glibc

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

cna@vuldb.com (Permissions Required, Third Party Advisory)
cna@vuldb.com (Permissions Required, Third Party Advisory)
cna@vuldb.com (Patch, Third Party Advisory, Issue Tracking)
cna@vuldb.com (Patch)

Frequently asked questions

What is CVE-2023-0687?: CVE-2023-0687 is a medium-severity vulnerability in Gnu C Library, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 4.6/10. Published 2023-02-06.
How severe is CVE-2023-0687?: Medium severity. CVSS v3 base score is 4.6 out of 10.