Use-after-free in mruby - CVE-2022-1934
Published: June 1, 2022
Vulnerability identifier: #VU63915
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-1934
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in the hash_new_from_values function. A remote attacker can send a specially crafted request and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Affected software
mruby
How to mitigate CVE-2022-1934
Install updates from vendor's website.
mruby - update to 3.2.0