NVD Vulnerability Detail
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CVE-2024-7531
Summary

Calling `PK11_Encrypt()` in NSS using CKM_CHACHA20 and the same buffer for input and output can result in plaintext on an Intel Sandy Bridge processor. In Firefox this only affects the QUIC header protection feature when the connection is using the ChaCha20-Poly1305 cipher suite. The most likely outcome is connection failure, but if the connection persists despite the high packet loss it could be possible for a network observer to identify packets as coming from the same source despite a network path change. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, and Firefox ESR < 128.1.

Publication Date Aug. 6, 2024, 10:15 p.m.
Registration Date Aug. 7, 2024, 5 a.m.
Last Update Oct. 31, 2024, 6:35 a.m.
CVSS3.1 : MEDIUM
スコア 6.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
攻撃元区分(AV) ネットワーク
攻撃条件の複雑さ(AC)
攻撃に必要な特権レベル(PR) 不要
利用者の関与(UI)
影響の想定範囲(S) 変更なし
機密性への影響(C)
完全性への影響(I) なし
可用性への影響(A) なし
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* 129.0
cpe:2.3:a:mozilla:firefox_esr:128.0:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* 115.14.0
Related information, measures and tools
Common Vulnerabilities List