Summary
Hiroki Kurosawa discovered that curl incorrectly handled certain OCSP
responses. This could result in bad certificates not being checked
properly, contrary to expectations.
Fixed packages 3
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · 20.04 LTS 20.04:LTS | curl | 7.68.0-1ubuntu2.24 |
| Ubuntu · 22.04 LTS 22.04:LTS | curl | 7.81.0-1ubuntu1.18 |
| Ubuntu · 24.04 LTS 24.04:LTS | curl | 8.5.0-2ubuntu10.4 |
Vulnerabilities 1
-
Medium 6.5
OCSP stapling bypass with GnuTLS
When curl is told to use the Certificate Status Request TLS extension, often referred to as OCSP stapling, to verify that the server certificate is valid, it might fail to detect some OCSP problems and instead wrongly consider the response as fine. If the ret…
References
-
report
https://ubuntu.com/security/CVE-2024-8096