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CVE-2019-16254

CVE-2019-16254

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 5.3 · Medium · EPSS 4.6% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • jruby Debian:12

    Affected ranges
    • ECOSYSTEM: < 9.3.9.0+ds-1

    Update to 9.3.9.0+ds-1

  • jruby Debian:13

    Affected ranges
    • ECOSYSTEM: < 9.3.9.0+ds-1

    Update to 9.3.9.0+ds-1

  • jruby Debian:14

    Affected ranges
    • ECOSYSTEM: < 9.3.9.0+ds-1

    Update to 9.3.9.0+ds-1

  • jruby Ubuntu:Pro:14.04:LTS

    Versions
    • 1.5.6-5ubuntu1
    • 1.5.6-6
    • 1.5.6-7
    Affected ranges
    • ECOSYSTEM: < 1.5.6-9+deb8u2build0.14.04.1~esm2

    Update to 1.5.6-9+deb8u2build0.14.04.1~esm2

  • ruby2.3 Ubuntu:16.04:LTS

    Versions
    • 2.3.0-1
    • 2.3.0-2
    • 2.3.0-4ubuntu2
    • 2.3.0-4ubuntu3
    • 2.3.0-5ubuntu1
    • 2.3.1-2~16.04
    • 2.3.1-2~16.04.2
    • 2.3.1-2~16.04.4
    • 2.3.1-2~16.04.5
    • 2.3.1-2~16.04.6
    • 2.3.1-2~16.04.7
    • 2.3.1-2~16.04.9
    • 2.3.1-2~16.04.10
    • 2.3.1-2~16.04.11
    • 2.3.1-2~16.04.12
    • 2.3.1-2~ubuntu16.04.13
    Affected ranges
    • ECOSYSTEM: < 2.3.1-2~ubuntu16.04.14

    Update to 2.3.1-2~ubuntu16.04.14

  • ruby2.5 Ubuntu:18.04:LTS

    Versions
    • 2.5.0~preview1-1ubuntu2
    • 2.5.0-4ubuntu1
    • 2.5.0-4ubuntu4
    • 2.5.0-5ubuntu1
    • 2.5.0-6ubuntu1
    • 2.5.1-1ubuntu1
    • 2.5.1-1ubuntu1.1
    • 2.5.1-1ubuntu1.2
    • 2.5.1-1ubuntu1.4
    • 2.5.1-1ubuntu1.5
    Affected ranges
    • ECOSYSTEM: < 2.5.1-1ubuntu1.6

    Update to 2.5.1-1ubuntu1.6

Original sources

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