ReDoS vulnerability in parser_apache2

Fluentd collects events from various data sources and writes them to files to help unify logging infrastructure. The parser_apache2 plugin in Fluentd v0.14.14 to v1.14.1 suffers from a regular expression denial of service (ReDoS) vulnerability. A broken apache log with a certain pattern of string can spend too much time in a regular expression, resulting in the potential for a DoS attack. This issue is patched in version 1.14.2 There are two workarounds available. Either don't use parser_apache2 for parsing logs (which cannot guarantee generated by Apache), or put patched version of parser_apache2.rb into /etc/fluent/plugin directory (or any other directories specified by the environment variable `FLUENT_PLUGIN` or `--plugin` option of fluentd).

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

未加控制的资源消耗(资源穷尽)

Fluentd 资源管理错误漏洞

Fluentd是云原生计算（Cloud Native Computing Foundation）基金会的一个开源日志收集器。用于从各种数据源收集事件并将它们写入文件、Rdbms、NoSql、IaaS、SaaS、Hadoop 等。 Fluentd v0.14.14到v1.14.1版本存在资源管理错误漏洞，该漏洞源于软件的插件parser_apache2插件对于正则表达式处理存在问题，具有特定字符串模式的受损apache日志可能会导致正则表达式处理时间过长，从而导致拒绝服务攻击。

N/A

N/A