CVE-2018-6343 describes a denial-of-service vulnerability in Facebook Proxygen, affecting versions from v2018.10.29.00 to v2018.11.19.00. The flaw arises from Proxygen's failure to validate a secondary authentication manager before dereferencing it when parsing HTTP/2 Certificate/CertificateRequest frames over a Fizz (TLS 1.3) transport. With a CVSS score of 7.5 (HIGH), this vulnerability allows an unauthenticated attacker to cause a denial of service with low attack complexity. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 2018.10.29.00, < 2018.11.19.00CPE matchmatch criteria | cpe:2.3:a:facebook:proxygen:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.