Vulnerability · Published May 18, 2023 · Assigned by facebook
CVE-2023-23759
High 7.5
In plain English
A high-severity security flaw in fizz from Facebook. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.7%top 45.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
There is a vulnerability in the fizz library prior to v2023.01.30.00 where a CHECK failure can be triggered remotely. This behavior requires the client supported cipher advertisement changing between the original ClientHello and the second ClientHello, crashing the process (impact is limited to denial of service).
Affected products (as reported)
Weakness: CWE-617 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- https://www.facebook.com/security/advisories/cve-2023-23759 x_refsource_CONFIRM
- https://github.com/facebookincubator/fizz/commit/8d3649841597bedfb6986c30431ebad0eb215265 x_refsource_MISC