Improper input validation in Http4s
CVE-2023-22465
Http4s is a Scala interface for HTTP services. Starting with version 0.1.0 and prior to versions 0.21.34, 0.22.15, 0.23.17, and 1.0.0-M38, the `User-Agent` and `Server` header parsers are susceptible to a fatal error on certain inputs. In http4s, modeled headers are lazily parsed, so this only applies to services that explicitly request these typed headers. Fixes are released in 0.21.34, 0.22.15, 0.23.17, and 1.0.0-M38. As a workaround, use the weakly typed header interface.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.008 (54.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Http4s — versions >= 0.1.0, < 0.21.34, >= 0.22.0, < 0.22.15, >= 0.23.0, < 0.23.17
- Typelevel Http4s — versions 1.0.0
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Third Party Advisory, Mitigation)
Frequently asked questions
- What is CVE-2023-22465?
- CVE-2023-22465 is a high-severity vulnerability in Http4s, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2023-01-04.
- How severe is CVE-2023-22465?
- High severity. CVSS v3 base score is 7.5 out of 10.