Vulnerability Details : CVE-2023-31973
Potential exploit
yasm v1.3.0 was discovered to contain a use after free via the function expand_mmac_params at /nasm/nasm-pp.c. Note: Multiple third parties dispute this as a bug and not a vulnerability according to the YASM security policy.
Vulnerability category: Memory Corruption
Products affected by CVE-2023-31973
- cpe:2.3:a:tortall:yasm:1.3.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2023-31973
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 21 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2023-31973
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2024-07-03 |
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2023-31973
-
The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.Assigned by:
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
- nvd@nist.gov (Primary)
-
The product calls free() on a pointer to memory that was not allocated using associated heap allocation functions such as malloc(), calloc(), or realloc().Assigned by: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)
References for CVE-2023-31973
-
https://github.com/yasm/yasm/issues/207
yasm heap use-after-free bug · Issue #207 · yasm/yasm · GitHubExploit;Issue Tracking
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