VULNERABILITY INTELLIGENCE

CVE-2021-24029

CVSS score7.5 HIGH

EPSS probability1.19%

CISA KEVNot currently listed

Published2021-03-15

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

A packet of death scenario is possible in mvfst via a specially crafted message during a QUIC session, which causes a crash via a failed assertion. Per QUIC specification, this particular message should be treated as a connection error. This issue affects mvfst versions prior to commit a67083ff4b8dcbb7ee2839da6338032030d712b0 and proxygen versions prior to v2021.03.15.00.

Weakness classification

cve-assign@fb.com: CWE-617
nvd@nist.gov: CWE-617

Primary references

cve-assign@fb.com — Patch, Third Party Advisory
cve-assign@fb.com — Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory