HTTP Response Splitting Affecting rh-ruby25-rubygem-rdoc package, versions <0:6.0.1.1-9.el7


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.78% (82nd percentile)

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  • Snyk IDSNYK-RHEL7-RHRUBY25RUBYGEMRDOC-4772823
  • published26 Jul 2021
  • disclosed25 Oct 2019

Introduced: 25 Oct 2019

CVE-2019-16254  (opens in a new tab)
CWE-113  (opens in a new tab)

How to fix?

Upgrade RHEL:7 rh-ruby25-rubygem-rdoc to version 0:6.0.1.1-9.el7 or higher.
This issue was patched in RHSA-2021:2104.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rh-ruby25-rubygem-rdoc package and not the rh-ruby25-rubygem-rdoc package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 allows HTTP Response Splitting. If a program using WEBrick inserts untrusted input into the response header, an attacker can exploit it to insert a newline character to split a header, and inject malicious content to deceive clients. NOTE: this issue exists because of an incomplete fix for CVE-2017-17742, which addressed the CRLF vector, but did not address an isolated CR or an isolated LF.

CVSS Scores

version 3.1