CVE-2024-22857: Zlog Project Zlog

Critical severity, CVSS 9.8. EPSS: 1.7% chance of exploitation in the next 30 days.

Heap based buffer flow in zlog v1.1.0 to v1.2.17 in zlog_rule_new().The size of record_name is MAXLEN_PATH(1024) + 1 but file_path may have data upto MAXLEN_CFG_LINE(MAXLEN_PATH*4) + 1. So a check was missing in zlog_rule_new() while copying the record_name from file_path + 1 which caused the buffer overflow. An attacker can exploit this vulnerability to overwrite the zlog_record_fn record_func function pointer to get arbitrary code execution or potentially cause remote code execution (RCE).

Affected products

• Zlog Project Zlog: from 1.1.0, up to and including 1.2.17

Published 2024-03-07. Last modified 2026-06-17.