Encoding Error Affecting mod_proxy_html package, versions <1:2.4.6-31.el7_1.1


Severity

Recommended
medium

Based on CentOS security rating.

Threat Intelligence

EPSS
6.16% (94th percentile)

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  • Snyk IDSNYK-CENTOS7-MODPROXYHTML-2051786
  • published26 Jul 2021
  • disclosed15 Jul 2015

Introduced: 15 Jul 2015

CVE-2015-3183  (opens in a new tab)
CWE-172  (opens in a new tab)

How to fix?

Upgrade Centos:7 mod_proxy_html to version 1:2.4.6-31.el7_1.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mod_proxy_html package and not the mod_proxy_html package as distributed by Centos. See How to fix? for Centos:7 relevant fixed versions and status.

The chunked transfer coding implementation in the Apache HTTP Server before 2.4.14 does not properly parse chunk headers, which allows remote attackers to conduct HTTP request smuggling attacks via a crafted request, related to mishandling of large chunk-size values and invalid chunk-extension characters in modules/http/http_filters.c.

References

CVSS Scores

version 3.1