Detections
Analytics
CVE-2024-22857
critical
Description
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).
References
https://www.ebryx.com/blogs/arbitrary-code-execution-in-zlog-cve-2024-22857
https://www.cybersecurity-help.cz/vdb/SB2024022842
https://github.com/HardySimpson/zlog/pull/251
https://github.com/HardySimpson/zlog/blob/1a7b1a6fb956b92a4079ccc91f30da21f34ca063/src/rule.h#L30