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HTTP Response Splitting Affecting ruby-irb package, versions <0:2.0.0.648-36.amzn2.0.7

Severity

 Recommended
high

    Threat Intelligence

    EPSS
    1.06% (85th percentile)

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  • Snyk ID SNYK-AMZN2-RUBYIRB-6371148
  • published 5 Mar 2024
  • disclosed 26 Nov 2019
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Introduced: 26 Nov 2019

CVE-2019-16254 Open this link in a new tab
CWE-113 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2 ruby-irb to version 0:2.0.0.648-36.amzn2.0.7 or higher.
This issue was patched in ALAS2-2024-2486.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby-irb package and not the ruby-irb package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 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.

References

CVSS Scores

version 3.1
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Snyk

5.3 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    Low
  • Availability (A)
    None
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NVD

5.3 medium
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SUSE

6.8 medium
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Red Hat

5.3 medium