Out-of-bounds Write Affecting MozillaFirefox-devel package, versions <91.8.0-150000.150.27.1



    Attack Complexity High
    User Interaction Required
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.13% (48th percentile)
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8.8 high
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7.5 high
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Red Hat
8.8 high

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  • published 25 Feb 2024
  • disclosed 7 Apr 2022

How to fix?

Upgrade SLES:15.1 MozillaFirefox-devel to version 91.8.0-150000.150.27.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream MozillaFirefox-devel package and not the MozillaFirefox-devel package as distributed by SLES. See How to fix? for SLES:15.1 relevant fixed versions and status.

If a compromised content process sent an unexpected number of WebAuthN Extensions in a Register command to the parent process, an out of bounds write would have occurred leading to memory corruption and a potentially exploitable crash. This vulnerability affects Thunderbird < 91.8, Firefox < 99, and Firefox ESR < 91.8.