CVE-2020-1898 describes a stack exhaustion vulnerability in the fb_unserialize function of HHVM, affecting versions prior to v4.32.3 and various versions between 4.33.0 and 4.62.0. A maliciously crafted string could trigger infinite recursion during deserialization, leading to a denial of service. This vulnerability has a CVSS score of 7.5 (High), indicating it can be exploited remotely with low complexity and no user interaction, resulting in high availability impact. 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 |
|---|---|---|---|
< 4.32.3CPE matchmatch criteria | cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* | ||
>= 4.33.0, < 4.56.1CPE matchmatch criteria | cpe:2.3:a:facebook:hhvm:*:*:*:*:*:*:*:* | ||
4.57.0CPE matchmatch criteria | cpe:2.3:a:facebook:hhvm:4.57.0:*:*:*:*:*:*:* | ||
4.58.0CPE matchmatch criteria | cpe:2.3:a:facebook:hhvm:4.58.0:*:*:*:*:*:*:* | ||
4.58.1CPE matchmatch criteria | cpe:2.3:a:facebook:hhvm:4.58.1:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No social media mentions found for this CVE.
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.