CVE-2017-8301 LibreSSL 2.5.1 to 2.5.3 lacks TLS certificate verification if SSL_get_verify_result is relied upon for a later check of a verification result, in a use case where a user-provided verification callback...
MediumCVSS 5.3
EPSS 1.0%
- Published
- Updated
- Exploit status
- No public exploit known
Description
LibreSSL 2.5.1 to 2.5.3 lacks TLS certificate verification if SSL_get_verify_result is relied upon for a later check of a verification result, in a use case where a user-provided verification callback returns 1, as demonstrated by acceptance of invalid certificates by nginx.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| OpenBSD libressl | = 2.5.1 | No fix listed |
| OpenBSD libressl | = 2.5.2 | No fix listed |
| OpenBSD libressl | = 2.5.3 | No fix listed |
| alpine/libressl(Alpine:v3.10) | < 2.5.3-r1 | 2.5.3-r1 |
| alpine/libressl(Alpine:v3.11) | < 2.5.3-r1 | 2.5.3-r1 |
| alpine/libressl(Alpine:v3.12) | < 2.5.3-r1 | 2.5.3-r1 |
| alpine/libressl(Alpine:v3.13) | < 2.5.3-r1 | 2.5.3-r1 |
| alpine/libressl(Alpine:v3.14) | < 2.5.3-r1 | 2.5.3-r1 |
| alpine/libressl(Alpine:v3.15) | < 2.5.3-r1 | 2.5.3-r1 |
| alpine/libressl(Alpine:v3.16) | < 2.5.3-r1 | 2.5.3-r1 |
| alpine/libressl(Alpine:v3.17) | < 2.5.3-r1 | 2.5.3-r1 |
| alpine/libressl(Alpine:v3.18) | < 2.5.3-r1 | 2.5.3-r1 |
| alpine/libressl(Alpine:v3.19) | < 2.5.3-r1 | 2.5.3-r1 |
| alpine/libressl(Alpine:v3.20) | < 2.5.3-r1 | 2.5.3-r1 |
| alpine/libressl(Alpine:v3.21) | < 2.5.3-r1 | 2.5.3-r1 |
| alpine/libressl(Alpine:v3.22) | < 2.5.3-r1 | 2.5.3-r1 |
| alpine/libressl(Alpine:v3.23) | < 2.5.3-r1 | 2.5.3-r1 |
| alpine/libressl(Alpine:v3.24) | < 2.5.3-r1 | 2.5.3-r1 |
| alpine/libressl(Alpine:v3.6) | < 2.5.3-r1 | 2.5.3-r1 |
| alpine/libressl(Alpine:v3.7) | < 2.5.3-r1 | 2.5.3-r1 |
| alpine/libressl(Alpine:v3.8) | < 2.5.3-r1 | 2.5.3-r1 |
| alpine/libressl(Alpine:v3.9) | < 2.5.3-r1 | 2.5.3-r1 |
References
- seclists.org mailing-list third-party-advisory
- 98076 third-party-advisory vdb-entry
- github.com issue-tracking patch third-party-advisory
- trac.nginx.org issue-tracking patch third-party-advisory
- security.alpinelinux.org vendor-advisory