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CVE-2017-7813

CVE-2017-7813

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

Inside the JavaScript parser, a cast of an integer to a narrower type can result in data read from outside the buffer being parsed. This usually results in a non-exploitable crash, but can leak a limited amount of information from memory if it matches JavaScript identifier syntax. This vulnerability affects Firefox < 56.

CVSS 8.2 · High · EPSS 1.6% · Fix available

Published
Updated

Stack: system

Affected products and versions

  • firefox

    Versions
    • ≥ unspecified, < 56: Affected (custom)

    Update to 56

  • 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
    • 41.0+build3-0ubuntu0.14.04.1
    • 41.0.1+build2-0ubuntu0.14.04.1
    • 41.0.2+build2-0ubuntu0.14.04.1
    • 42.0+build2-0ubuntu0.14.04.1
    • 43.0+build1-0ubuntu0.14.04.1
    • 43.0.4+build3-0ubuntu0.14.04.1
    • 44.0+build3-0ubuntu0.14.04.1
    • 44.0.1+build2-0ubuntu0.14.04.1
    • 44.0.2+build1-0ubuntu0.14.04.1
    • 45.0+build2-0ubuntu0.14.04.1
    • 45.0.1+build1-0ubuntu0.14.04.2
    • 45.0.2+build1-0ubuntu0.14.04.1
    • 46.0+build5-0ubuntu0.14.04.2
    • 46.0.1+build1-0ubuntu0.14.04.3
    • 47.0+build3-0ubuntu0.14.04.1
    • 48.0+build2-0ubuntu0.14.04.1
    • 49.0+build4-0ubuntu0.14.04.1
    • 49.0.2+build2-0ubuntu0.14.04.1
    • 50.0+build2-0ubuntu0.14.04.2
    • 50.0.2+build1-0ubuntu0.14.04.1
    • 50.1.0+build2-0ubuntu0.14.04.1
    • 51.0.1+build2-0ubuntu0.14.04.1
    • 51.0.1+build2-0ubuntu0.14.04.2
    • 52.0+build2-0ubuntu0.14.04.1
    • 52.0.1+build2-0ubuntu0.14.04.1
    • 52.0.2+build1-0ubuntu0.14.04.1
    • 53.0+build6-0ubuntu0.14.04.1
    • 53.0.2+build1-0ubuntu0.14.04.2
    • 53.0.3+build1-0ubuntu0.14.04.2
    • 54.0+build3-0ubuntu0.14.04.1
    • 55.0.1+build2-0ubuntu0.14.04.2
    • 55.0.2+build1-0ubuntu0.14.04.1
    Affected ranges
    • ECOSYSTEM: < 56.0+build6-0ubuntu0.14.04.1

    Update to 56.0+build6-0ubuntu0.14.04.1

  • firefox Ubuntu:16.04:LTS

    Versions
    • 41.0.2+build2-0ubuntu1
    • 42.0+build2-0ubuntu1
    • 44.0+build3-0ubuntu2
    • 44.0.1+build1-0ubuntu1
    • 44.0.2+build1-0ubuntu1
    • 45.0+build2-0ubuntu1
    • 45.0.1+build1-0ubuntu1
    • 45.0.2+build1-0ubuntu1
    • 46.0+build5-0ubuntu0.16.04.2
    • 46.0.1+build1-0ubuntu0.16.04.2
    • 47.0+build3-0ubuntu0.16.04.1
    • 48.0+build2-0ubuntu0.16.04.1
    • 49.0+build4-0ubuntu0.16.04.1
    • 49.0.2+build2-0ubuntu0.16.04.2
    • 50.0+build2-0ubuntu0.16.04.2
    • 50.0.2+build1-0ubuntu0.16.04.1
    • 50.1.0+build2-0ubuntu0.16.04.1
    • 51.0.1+build2-0ubuntu0.16.04.1
    • 51.0.1+build2-0ubuntu0.16.04.2
    • 52.0+build2-0ubuntu0.16.04.1
    • 52.0.1+build2-0ubuntu0.16.04.1
    • 52.0.2+build1-0ubuntu0.16.04.1
    • 53.0+build6-0ubuntu0.16.04.1
    • 53.0.2+build1-0ubuntu0.16.04.2
    • 53.0.3+build1-0ubuntu0.16.04.2
    • 54.0+build3-0ubuntu0.16.04.1
    • 55.0.1+build2-0ubuntu0.16.04.2
    • 55.0.2+build1-0ubuntu0.16.04.1
    Affected ranges
    • ECOSYSTEM: < 56.0+build6-0ubuntu0.16.04.1

    Update to 56.0+build6-0ubuntu0.16.04.1

  • firefox Ubuntu:18.04:LTS

    Affected ranges
    • ECOSYSTEM: < 56.0+build6-0ubuntu1

    Update to 56.0+build6-0ubuntu1

  • mozjs38 Ubuntu:18.04:LTS

    Versions
    • 38.8.0~repack1-0ubuntu1
    • 38.8.0~repack1-0ubuntu3
    • 38.8.0~repack1-0ubuntu4
    Affected ranges
    • ECOSYSTEM: (−∞, +∞)

    No fix published

Original sources

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