CVE-2024-7531 (GCVE-0-2024-7531)

Vulnerability from cvelistv5 – Published: 2024-08-06 12:38 – Updated: 2025-03-19 15:51
VLAI?
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.
Severity ?
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CWE
  • PK11_Encrypt using CKM_CHACHA20 can reveal plaintext on Intel Sandy Bridge machines
Assigner
References
Impacted products
Vendor Product Version
Mozilla Firefox Affected: unspecified , < 129 (custom)
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    Mozilla Firefox ESR Affected: unspecified , < 115.14 (custom)
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    Mozilla Firefox ESR Affected: unspecified , < 128.1 (custom)
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Credits
Lars Eggert
Show details on NVD website
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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