p PatchFirst

CVE-2015-4520

CVE-2015-4520

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

Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 allow remote attackers to bypass CORS preflight protection mechanisms by leveraging (1) duplicate cache-key generation or (2) retrieval of a value from an incorrect HTTP Access-Control-* response header.

EPSS 2.6% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • n/a

    Versions
    • n/a: Affected

    No fix published

  • firefox Ubuntu:14.04:LTS

    Versions
    • 24.0+build1-0ubuntu1
    • 25.0+build3-0ubuntu0.13.10.1
    • 28.0~b2+build1-0ubuntu2
    • 28.0+build1-0ubuntu1
    • 28.0+build2-0ubuntu1
    • 28.0+build2-0ubuntu2
    • 29.0+build1-0ubuntu0.14.04.2
    • 30.0+build1-0ubuntu0.14.04.3
    • 31.0+build1-0ubuntu0.14.04.1
    • 32.0+build1-0ubuntu0.14.04.1
    • 32.0.3+build1-0ubuntu0.14.04.1
    • 33.0+build2-0ubuntu0.14.04.1
    • 34.0+build2-0ubuntu0.14.04.1
    • 35.0+build3-0ubuntu0.14.04.2
    • 35.0.1+build1-0ubuntu0.14.04.1
    • 36.0+build2-0ubuntu0.14.04.4
    • 36.0.1+build2-0ubuntu0.14.04.1
    • 36.0.4+build1-0ubuntu0.14.04.1
    • 37.0+build2-0ubuntu0.14.04.1
    • 37.0.1+build1-0ubuntu0.14.04.1
    • 37.0.2+build1-0ubuntu0.14.04.1
    • 38.0+build3-0ubuntu0.14.04.1
    • 39.0+build5-0ubuntu0.14.04.1
    • 39.0.3+build2-0ubuntu0.14.04.1
    • 40.0+build4-0ubuntu0.14.04.1
    • 40.0+build4-0ubuntu0.14.04.4
    • 40.0.3+build1-0ubuntu0.14.04.1
    Affected ranges
    • ECOSYSTEM: < 41.0+build3-0ubuntu0.14.04.1

    Update to 41.0+build3-0ubuntu0.14.04.1

  • thunderbird Ubuntu:14.04:LTS

    Versions
    • 1:24.0+build1-0ubuntu1
    • 1:24.0+build1-0ubuntu2
    • 1:24.1.1+build1-0ubuntu0.13.10.1
    • 1:24.1.1+build1-0ubuntu1
    • 1:24.2.0+build1-0ubuntu1
    • 1:24.4.0+build1-0ubuntu1
    • 1:24.5.0+build1-0ubuntu0.14.04.1
    • 1:24.6.0+build1-0ubuntu0.14.04.1
    • 1:31.0+build1-0ubuntu0.14.04.1
    • 1:31.1.1+build1-0ubuntu0.14.04.1
    • 1:31.1.2+build1-0ubuntu0.14.04.1
    • 1:31.2.0+build2-0ubuntu0.14.04.1
    • 1:31.3.0+build1-0ubuntu0.14.04.1
    • 1:31.4.0+build1-0ubuntu0.14.04.1
    • 1:31.5.0+build1-0ubuntu0.14.04.1
    • 1:31.6.0+build1-0ubuntu0.14.04.1
    • 1:31.7.0+build1-0ubuntu0.14.04.1
    • 1:31.8.0+build1-0ubuntu0.14.04.1
    • 1:38.2.0+build1-0ubuntu0.14.04.1
    Affected ranges
    • ECOSYSTEM: < 1:38.3.0+build1-0ubuntu0.14.04.1

    Update to 1:38.3.0+build1-0ubuntu0.14.04.1

Original sources

Check your server →