CVE-2021-29981

August 25, 2021

An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lead to a potentially exploitable crash. This vulnerability affects Firefox < 91 and Thunderbird < 91.

Summary:

An issue present in lowering/register allocation could have led to obscure but deterministic register confusion failures in JITted code that would lead to a potentially exploitable crash. This vulnerability affects Firefox < 91 and Thunderbird < 91.

Reference Links(if available):

  • https://bugzilla.mozilla.org/show_bug.cgi?id=1707774
  • https://www.mozilla.org/security/advisories/mfsa2021-33/
  • https://www.mozilla.org/security/advisories/mfsa2021-36/

  • CVSS Score (if available)

    v2: / MEDIUM

    v3: /

    Links to Exploits(if available)

  • Tags: , , , ,

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