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8.8 High

CVE-2023-25732 When encoding data from an inputStream in xpcom the size of the input being encoded was not correctly calculated…

Description

When encoding data from an <code>inputStream</code> in <code>xpcom</code> the size of the input being encoded was not correctly calculated potentially leading to an out of bounds memory write. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.

Affected products and versions

Product Affected versions Fixed in
Firefox 110 earliest → < 110 110
Thunderbird 102.8 earliest → < 102.8 102.8
Firefox ESR 102.8 earliest → < 102.8 102.8

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