Denial of Service via integer overflow and buffer overrun on 32-bit systems

Summary

jq is a command-line JSON processor. Prior to 1.8.2, on 32bit system, jvp_string_append has a chance of integer/multiple overflowing and then causing a massive buffer overrun. This vulnerability is fixed in 1.8.2. A flaw was found in jq, a command-line JSON processor. On 32-bit systems, a local attacker could exploit an integer overflow vulnerability in the `jvp_string_append` function. This could lead to a massive buffer overrun, resulting in a denial of service (DoS) condition. Red Hat severity: Moderate — CVSS 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-190. Fixed by RHSA-2026:29986 — update the affected packages (`sudo dnf update`). Affected Red Hat products: Red Hat Hardened Images.