Описание
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.
Пакеты
| Пакет | Статус | Версия исправления | Релиз | Тип |
|---|---|---|---|---|
| firefox | fixed | 129.0-1 | package | |
| firefox-esr | fixed | 115.14.0esr-1 | package | |
| nss | fixed | 2:3.103-1 | package | |
| nss | ignored | bookworm | package | |
| nss | not-affected | bullseye | package |
Примечания
https://bugzilla.mozilla.org/show_bug.cgi?id=1905691
https://www.mozilla.org/en-US/security/advisories/mfsa2024-33/#CVE-2024-7531
https://www.mozilla.org/en-US/security/advisories/mfsa2024-34/#CVE-2024-7531
https://firefox-source-docs.mozilla.org/security/nss/releases/nss_3_102_1.html
Fixed by: https://hg.mozilla.org/projects/nss/rev/525c5044cc9e53f5015c697b04b1405df91003ac
Fixed by: https://hg.mozilla.org/projects/nss/rev/b0b0b68f8c764bf7848ca94f8b011e4bf192dc3f (NSS_3_90_BRANCH)
https://groups.google.com/a/mozilla.org/g/dev-tech-crypto/c/h3Q2S0n2vTg/m/abQtMoYYAgAJ
Связанные уязвимости
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.
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.
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.
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.
Уязвимость компоненте шифрования NSS браузеров Mozilla Firefox, Firefox ESR, позволяющая нарушителю получить доступ к защищаемой информации