Vulnerability · Published May 10, 2023 · Assigned by facebook

CVE-2022-36937

Critical 9.8

In plain English

A critical-severity broken cryptography in HHVM from Facebook. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)0.5%top 55.2% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

HHVM 4.172.0 and all prior versions use TLS 1.0 for secure connections when handling tls:// URLs in the stream extension. TLS1.0 has numerous published vulnerabilities and is deprecated. HHVM 4.153.4, 4.168.2, 4.169.2, 4.170.2, 4.171.1, 4.172.1, 4.173.0 replaces TLS1.0 with TLS1.3. Applications that call stream_socket_server or stream_socket_client functions with a URL starting with tls:// are affected.

Affected products (as reported)

Vendor	Product	Versions
Facebook	HHVM	4.172.0 – before 4.172.14.171.0 – before 4.171.14.170.0 – before 4.170.24.169.0 – before 4.169.24.154.0 – before 1.168.20 – before 4.153.4

Weakness: CWE-327 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://hhvm.com/blog/2023/01/20/security-update.html x_refsource_CONFIRM
https://github.com/facebook/hhvm/commit/083f5ffdee661f61512909d16f9a5b98cff3cf0b x_refsource_MISC