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The WebAssembly JIT could miscalculate the size of a...

Moderate severity Unreviewed Published May 24, 2022 to the GitHub Advisory Database • Updated Jan 29, 2023

Package

No package listedSuggest a package

Affected versions

Unknown

Patched versions

Unknown

Description

The WebAssembly JIT could miscalculate the size of a return type, which could lead to a null read and result in a crash. Note: This issue only affected x86-32 platforms. Other platforms are unaffected.. This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.

References

Published by the National Vulnerability Database Jun 24, 2021
Published to the GitHub Advisory Database May 24, 2022
Last updated Jan 29, 2023

Severity

Moderate

EPSS score

0.167%
(55th percentile)

Weaknesses

CVE ID

CVE-2021-29945

GHSA ID

GHSA-79cg-jg39-89hq

Source code

No known source code

Dependabot alerts are not supported on this advisory because it does not have a package from a supported ecosystem with an affected and fixed version.

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