CVE-2021-4110 : mruby is vulnerable to NULL Pointer Dereference

mruby is vulnerable to NULL Pointer Dereference

Published 2021-12-15 05:15:08

Updated 2021-12-15 22:15:36

Source huntr.dev

View at NVD, CVE.org

Vulnerability category: Memory Corruption

Products affected by CVE-2021-4110

Mruby » Mruby
Versions before (<) 3.1
cpe:2.3:a:mruby:mruby:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.12%

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

~ 46 %

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

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:N/I:N/A:P	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
9.1	CRITICAL	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H	3.9	5.2	huntr.dev
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: High
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None 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/f5e10c5a79a17939af763b1dcf5232ce47e24a34

proc.c: add `mrb_state` argument to `mrb_proc_copy()`. · mruby/mruby@f5e10c5 · GitHub
Patch;Third Party Advisory
https://huntr.dev/bounties/4ce5dc47-2512-4c87-8609-453adc8cad20

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

Jump to