CVE-2024-7531
First published: Tue Aug 06 2024(Updated: )
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.
Credit: security@mozilla.org security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Firefox ESR | <128.1 | 128.1 |
| Mozilla Firefox | <129.0 | |
| Mozilla Firefox ESR | <115.14.0 | |
| Mozilla Firefox ESR | =128.0 | |
| Mozilla Firefox ESR | <115.14 | 115.14 |
| Mozilla Firefox | <129 | 129 |
| debian/firefox | 131.0.2-2 | |
| debian/firefox-esr | 115.14.0esr-1~deb11u1 128.3.1esr-1~deb11u1 115.14.0esr-1~deb12u1 128.3.1esr-1~deb12u1 128.3.0esr-2 128.3.1esr-2 | |
| debian/nss | <=2:3.61-1+deb11u3<=2:3.87.1-1 | 2:3.105-2 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1905691
- https://www.mozilla.org/en-US/security/advisories/mfsa2024-35/
- https://www.mozilla.org/security/advisories/mfsa2024-33/
- https://www.mozilla.org/security/advisories/mfsa2024-34/
- https://www.mozilla.org/security/advisories/mfsa2024-35/
- https://www.mozilla.org/en-US/security/advisories/mfsa2024-34/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-7531
- https://nvd.nist.gov/vuln/detail/CVE-2024-7531
- https://launchpad.net/bugs/cve/CVE-2024-7531
- https://security-tracker.debian.org/tracker/CVE-2024-7531
- https://ubuntu.com/security/CVE-2024-7531
- https://www.mozilla.org/en-US/security/advisories/mfsa2024-33/
- 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
- https://hg.mozilla.org/projects/nss/rev/d5deac55f54350d60fd6ae69899ac399fdfcfc72
- https://hg.mozilla.org/projects/nss/rev/525c5044cc9e53f5015c697b04b1405df91003ac
- https://hg.mozilla.org/projects/nss/rev/b0b0b68f8c764bf7848ca94f8b011e4bf192dc3f
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- agent/type
- agent/first-publish-date
- collector/mozilla-advisory
- source/Mozilla
- agent/software-canonical-lookup
- collector/nvd-api
- source/NVD
- agent/severity
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- collector/nvd-cve
- agent/author
- collector/usn-cve
- source/Ubuntu
- agent/references
- agent/description
- agent/event
- agent/softwarecombine
- agent/tags
- collector/epss-latest
- source/FIRST
- agent/epss
- collector/security-tracker-debian
- source/Debian
- vendor/mozilla
- canonical/mozilla firefox esr
- canonical/mozilla firefox
- version/mozilla firefox esr/128.0
- package-manager/debian