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Security Advisories: GSA_kwCzR0hTQS1od2hmLTY0bWgtcjY2Ms0Wwg

ReDoS vulnerability in parser_apache2

Impact

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.

Patches

v1.14.2

Workarounds

Either of the following:

References

Permalink: https://github.com/advisories/GHSA-hwhf-64mh-r662
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1od2hmLTY0bWgtcjY2Ms0Wwg
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: over 2 years ago
Updated: about 1 year ago


CVSS Score: 5.9
CVSS vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Identifiers: GHSA-hwhf-64mh-r662, CVE-2021-41186
References: Repository: https://github.com/fluent/fluentd
Blast Radius: 20.6

Affected Packages

rubygems:fluentd
Dependent packages: 1,194
Dependent repositories: 3,044
Downloads: 48,645,726 total
Affected Version Ranges: >= 0.14.14, < 1.14.2
Fixed in: 1.14.2
All affected versions: 0.14.14, 0.14.15, 0.14.16, 0.14.17, 0.14.18, 0.14.19, 0.14.20, 0.14.21, 0.14.22, 0.14.23, 0.14.24, 0.14.25, 1.0.0, 1.0.1, 1.0.2, 1.1.0, 1.1.1, 1.1.2, 1.1.3, 1.2.0, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.2.6, 1.3.0, 1.3.1, 1.3.2, 1.3.3, 1.4.0, 1.4.1, 1.4.2, 1.5.0, 1.5.1, 1.5.2, 1.6.0, 1.6.1, 1.6.2, 1.6.3, 1.7.0, 1.7.1, 1.7.2, 1.7.3, 1.7.4, 1.8.0, 1.8.1, 1.9.0, 1.9.1, 1.9.2, 1.9.3, 1.10.0, 1.10.1, 1.10.2, 1.10.3, 1.10.4, 1.11.0, 1.11.1, 1.11.2, 1.11.3, 1.11.4, 1.11.5, 1.12.0, 1.12.1, 1.12.2, 1.12.3, 1.12.4, 1.13.0, 1.13.1, 1.13.2, 1.13.3, 1.14.0, 1.14.1
All unaffected versions: 0.10.0, 0.10.1, 0.10.2, 0.10.3, 0.10.4, 0.10.5, 0.10.6, 0.10.7, 0.10.8, 0.10.9, 0.10.10, 0.10.11, 0.10.12, 0.10.13, 0.10.15, 0.10.16, 0.10.17, 0.10.18, 0.10.19, 0.10.20, 0.10.21, 0.10.22, 0.10.23, 0.10.24, 0.10.25, 0.10.26, 0.10.27, 0.10.28, 0.10.29, 0.10.30, 0.10.31, 0.10.32, 0.10.33, 0.10.34, 0.10.35, 0.10.36, 0.10.37, 0.10.38, 0.10.39, 0.10.40, 0.10.41, 0.10.42, 0.10.43, 0.10.44, 0.10.45, 0.10.46, 0.10.47, 0.10.48, 0.10.49, 0.10.50, 0.10.51, 0.10.52, 0.10.53, 0.10.54, 0.10.55, 0.10.56, 0.10.57, 0.10.58, 0.10.59, 0.10.60, 0.10.61, 0.10.62, 0.12.0, 0.12.1, 0.12.2, 0.12.3, 0.12.4, 0.12.5, 0.12.6, 0.12.7, 0.12.8, 0.12.9, 0.12.10, 0.12.11, 0.12.12, 0.12.13, 0.12.14, 0.12.15, 0.12.16, 0.12.17, 0.12.18, 0.12.19, 0.12.20, 0.12.21, 0.12.22, 0.12.23, 0.12.24, 0.12.25, 0.12.26, 0.12.27, 0.12.28, 0.12.29, 0.12.30, 0.12.31, 0.12.32, 0.12.33, 0.12.34, 0.12.35, 0.12.36, 0.12.37, 0.12.38, 0.12.39, 0.12.40, 0.12.41, 0.12.42, 0.12.43, 0.14.0, 0.14.1, 0.14.2, 0.14.3, 0.14.4, 0.14.5, 0.14.6, 0.14.7, 0.14.8, 0.14.9, 0.14.10, 0.14.11, 0.14.12, 0.14.13, 1.14.2, 1.14.3, 1.14.4, 1.14.5, 1.14.6, 1.15.0, 1.15.1, 1.15.2, 1.15.3, 1.16.0, 1.16.1, 1.16.2, 1.16.3, 1.16.4, 1.16.5, 1.17.0