CVE-2022-0632 : NULL Pointer Dereference in Homebrew mruby prior to 3.2.

NULL Pointer Dereference in Homebrew mruby prior to 3.2.

Published 2022-02-19 14:15:12

Updated 2022-02-28 23:24:20

Source huntr.dev

View at NVD, CVE.org

Vulnerability category: Memory Corruption

Products affected by CVE-2022-0632

Mruby » Mruby
Versions before (<) 3.2
cpe:2.3:a:mruby:mruby:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.28%

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

~ 49 %

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

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:N/A:P	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
5.5	MEDIUM	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	1.8	3.6	huntr.dev
Attack Vector: Local Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: None Availability: High
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
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

The product dereferences a pointer that it expects to be valid but is NULL.

Assigned by: security@huntr.dev (Primary)

https://github.com/mruby/mruby/commit/44f591aa8f7091e6ca6cb418e428ae6d4ceaf77d

codegen.c: adjust stack position for `OP_SUPER` instruction. · mruby/mruby@44f591a · GitHub
Patch;Third Party Advisory
https://huntr.dev/bounties/3e5bb8f6-30fd-4553-86dd-761e9459ce1b

NULL Pointer Dereference vulnerability found in mruby
Exploit;Patch;Third Party Advisory

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