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CVE-2024-7531

Aug. 6, 2024, 4:30 p.m.

Product(s) Impacted

Mozilla Firefox

  • < 129
  • < 115.14
  • < 128.1

Description

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.

Weaknesses

Date

Published: Aug. 6, 2024, 1:15 p.m.

Last Modified: Aug. 6, 2024, 4:30 p.m.

Status : Awaiting Analysis

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

security@mozilla.org

References

https://bugzilla.mozilla.org/ security@mozilla.org

https://www.mozilla.org/ security@mozilla.org

https://www.mozilla.org/ security@mozilla.org

https://www.mozilla.org/ security@mozilla.org