Vulnerability Details : CVE-2021-33457

An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in expand_mmac_params() in modules/preprocs/nasm/nasm-pp.c.

Vulnerability category: Memory Corruption

Published 2022-07-26 13:15:09

Updated 2022-07-28 15:15:59

Source MITRE

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-33457

Probability of exploitation activity in the next 30 days: 0.05%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 16 % EPSS Score History EPSS FAQ

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
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	nvd@nist.gov
Attack Vector: Local Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE-476 NULL Pointer Dereference

A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit.

Assigned by: nvd@nist.gov (Primary)

https://github.com/yasm/yasm/issues/171

A NULL pointer dereference in the function expand_mmac_params() modules/preprocs/nasm/nasm-pp.c:3861 · Issue #171 · yasm/yasm · GitHub
Exploit;Issue Tracking;Third Party Advisory
https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d

Minimum information for the vulnerability covered by 32 CVEs. · GitHub
Third Party Advisory

CVEs referencing this url

Tortall » Yasm » Version: 1.3.0
cpe:2.3:a:tortall:yasm:1.3.0:*:*:*:*:*:*:*
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