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9.1 Critical

CVE-2024-11705 `NSC_DeriveKey` inadvertently assumed that the `phKey` parameter is always non-NULL

Description

`NSC_DeriveKey` inadvertently assumed that the `phKey` parameter is always non-NULL. When it was passed as NULL, a segmentation fault (SEGV) occurred, leading to crashes. This behavior conflicted with the PKCS#11 v3.0 specification, which allows `phKey` to be NULL for certain mechanisms. This vulnerability affects Firefox < 133 and Thunderbird < 133.

Affected products and versions

Product Affected versions Fixed in
Firefox 133 earliest → < 133 133
Thunderbird 133 earliest → < 133 133

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