Heap-based buffer overflow in jq - CVE-2023-50246
Published: June 25, 2025
Vulnerability identifier: #VU111915
CSH Severity: High
CVSS v4 BT: 8.1 [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/E:U/U:Amber]
CVE-ID: CVE-2023-50246
CWE-ID: CWE-122
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the decToString() function in decNumber.c . A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
jq
How to mitigate CVE-2023-50246
Install updates from vendor's website.
jq - update to 1.7.1