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CVE-2016-4975

CVE-2016-4975 · mod_userdir CRLF injection

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

This page shows selected source facts. See the linked advisories for the complete description and affected versions.

Possible CRLF injection allowing HTTP response splitting attacks for sites which use mod_userdir. This issue was mitigated by changes made in 2.4.25 and 2.2.32 which prohibit CR or LF injection into the "Location" or other outbound header key or value. Fixed in Apache HTTP Server 2.4.25 (Affected 2.4.1-2.4.23). Fixed in Apache HTTP Server 2.2.32 (Affected 2.2.0-2.2.31).

CVSS 6.1 · Medium · EPSS 19.8% · Public exploit · Fix available

Published
Updated

Stack: system · web

Affected products and versions

  • apache httpd

    Versions
    • Fixed in Apache HTTP Server 2.4.25 (Affected 2.4.1-2.4.23): Affected
    • Fixed in Apache HTTP Server 2.2.32 (Affected 2.2.0-2.2.31): Affected

    No fix published

  • apache2 Debian:12

    Affected ranges
    • ECOSYSTEM: < 2.4.25-1

    Update to 2.4.25-1

  • apache2 Debian:13

    Affected ranges
    • ECOSYSTEM: < 2.4.25-1

    Update to 2.4.25-1

  • apache2 Debian:14

    Affected ranges
    • ECOSYSTEM: < 2.4.25-1

    Update to 2.4.25-1

  • apache2 Ubuntu:14.04:LTS

    Versions
    • 2.4.6-2ubuntu2
    • 2.4.6-2ubuntu3
    • 2.4.6-2ubuntu4
    • 2.4.7-1ubuntu1
    • 2.4.7-1ubuntu2
    • 2.4.7-1ubuntu3
    • 2.4.7-1ubuntu4
    • 2.4.7-1ubuntu4.1
    • 2.4.7-1ubuntu4.4
    • 2.4.7-1ubuntu4.5
    • 2.4.7-1ubuntu4.6
    • 2.4.7-1ubuntu4.7
    • 2.4.7-1ubuntu4.8
    • 2.4.7-1ubuntu4.9
    • 2.4.7-1ubuntu4.10
    • 2.4.7-1ubuntu4.11
    • 2.4.7-1ubuntu4.13
    Affected ranges
    • ECOSYSTEM: < 2.4.7-1ubuntu4.15

    Update to 2.4.7-1ubuntu4.15

  • apache2 Ubuntu:16.04:LTS

    Versions
    • 2.4.12-2ubuntu2
    • 2.4.17-1ubuntu1
    • 2.4.17-2ubuntu1
    • 2.4.17-3ubuntu1
    • 2.4.18-1ubuntu1
    • 2.4.18-2ubuntu1
    • 2.4.18-2ubuntu2
    • 2.4.18-2ubuntu3
    • 2.4.18-2ubuntu3.1
    Affected ranges
    • ECOSYSTEM: < 2.4.18-2ubuntu3.2

    Update to 2.4.18-2ubuntu3.2

Original sources

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