CVE-2021-24029

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Un paquete de escenario death es posible en mvfst por medio de un mensaje especialmente diseñado durante una sesión QUIC, lo que causa un bloqueo por medio de un fallo de aserción. Según la especificación QUIC, este mensaje en particular debe tratarse como un error de conexión. Este problema afecta a las versiones de mvfst anteriores al commit a67083ff4b8dcbb7ee2839da6338032030d712b0 y versiones de proxygen anteriores a v2021.03.15.00

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-13 CVE Reserved
2021-03-15 CVE Published
2023-11-29 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-617: Reachable Assertion

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://github.com/facebookincubator/mvfst/commit/a67083ff4b8dcbb7ee2839da6338032030d712b0	2021-03-23

URL	Date	SRC
https://www.facebook.com/security/advisories/cve-2021-24029	2021-03-23

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Facebook Search vendor "Facebook"		Mvfst Search vendor "Facebook" for product "Mvfst"				< 2021-03-13 Search vendor "Facebook" for product "Mvfst" and version " < 2021-03-13"		-		Affected
Facebook Search vendor "Facebook"		Proxygen Search vendor "Facebook" for product "Proxygen"				< 2021.03.15.00 Search vendor "Facebook" for product "Proxygen" and version " < 2021.03.15.00"		-		Affected