CVE-2023-0687 : A vulnerability was found in GNU C Library 2.38. It has been declared as critica

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.

Published 2023-02-06 19:15:10

Updated 2024-08-02 06:15:17

Source VulDB

View at NVD, CVE.org

Vulnerability category: Overflow

Products affected by CVE-2023-0687

GNU » Glibc
Versions before (<) 2.38
cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2023-0687

EPSS FAQ

0.05%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 13 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2023-0687

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
4.0	MEDIUM	AV:A/AC:H/Au:S/C:P/I:P/A:P	2.5	6.4	VulDB
Access Vector: Adjacent Network Access Complexity: High Authentication: Single Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
4.0	MEDIUM	AV:A/AC:H/Au:S/C:P/I:P/A:P	2.5	6.4	NIST
Access Vector: Adjacent Network Access Complexity: High Authentication: Single Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
4.6	MEDIUM	CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L	1.2	3.4	VulDB
Attack Vector: Adjacent Network Attack Complexity: High Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: Low Integrity: Low Availability: Low
4.6	MEDIUM	CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L	1.2	3.4	VulDB	2024-02-14
Attack Vector: Adjacent Network Attack Complexity: High Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: Low Integrity: Low Availability: Low
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2023-0687

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

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

Assigned by: cna@vuldb.com (Primary)

References for CVE-2023-0687

https://vuldb.com/?ctiid.220246

Login required
Permissions Required;Third Party Advisory
https://sourceware.org/bugzilla/show_bug.cgi?id=29444

29444 – gmon memory corruption due wrong calculation of required buffer size
Issue Tracking;Patch;Third Party Advisory
https://vuldb.com/?id.220246

Login required
Permissions Required;Third Party Advisory
https://patchwork.sourceware.org/project/glibc/patch/20230204114138.5436-1-leo@yuriev.ru/

gmon: Fix allocated buffer overflow (bug 2944) - Patchwork
Patch;Third Party Advisory
https://patchwork.sourceware.org/project/glibc/patch/20230204114138.5436-1-leo%40yuriev.ru/

gmon: Fix allocated buffer overflow (bug 2944) - Patchwork
Patch

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Vulnerability Details : CVE-2023-0687

Products affected by CVE-2023-0687

Exploit prediction scoring system (EPSS) score for CVE-2023-0687

CVSS scores for CVE-2023-0687

CWE ids for CVE-2023-0687

References for CVE-2023-0687