Improper Certificate Validation Affecting libressl package, versions <2.5.3-r1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ALPINE320-LIBRESSL-7012676
- published23 May 2024
- disclosed27 Apr 2017
Introduced: 27 Apr 2017
CVE-2017-8301 (opens in a new tab)How to fix?
Upgrade Alpine:3.20 libressl to version 2.5.3-r1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libressl package and not the libressl package as distributed by Alpine.
See How to fix? for Alpine:3.20 relevant fixed versions and status.
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.