HSEC-2023-0005
See a problem?- Import Source
- https://github.com/haskell/security-advisories/blob/generated/osv-export/2023/HSEC-2023-0005.json
- JSON Data
- https://api.osv.dev/v1/vulns/HSEC-2023-0005
- Aliases
-
- CVE-2013-0243
- Published
- 2023-07-19T13:29:39Z
- Modified
- 2023-12-13T13:05:26.363609Z
- Summary
- tls-extra: certificate validation does not check Basic Constraints
- Details
-
tls-extra: certificate validation does not check Basic Constraints
tls-extra does not check the Basic Constraints extension of a certificate in certificate chain processing. Any certificate is treated as a CA certificate. As a consequence, anyone who has a valid certificate can use it to sign another one (with an arbitrary subject DN/domain name embedded into it) and have it accepted by tls. This allows MITM attacks on TLS connections.
- References
Affected packages
Hackage / tls-extra
Package
- Name
- tls-extra
- Purl
- pkg:hackage/tls-extra
Severity
- 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator