Resource Exhaustion The advisory has been revoked - it doesn't affect any version of package pyOpenSSL (opens in a new tab)
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-RHEL10-PYOPENSSL-9894873
- published29 Apr 2025
- disclosed1 Jan 2018
Introduced: 1 Jan 2018
CVE-2018-1000808 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream pyOpenSSL package and not the pyOpenSSL package as distributed by RHEL.
Python Cryptographic Authority pyopenssl version Before 17.5.0 contains a CWE - 401 : Failure to Release Memory Before Removing Last Reference vulnerability in PKCS #12 Store that can result in Denial of service if memory runs low or is exhausted. This attack appear to be exploitable via Depends upon calling application, however it could be as simple as initiating a TLS connection. Anything that would cause the calling application to reload certificates from a PKCS #12 store.. This vulnerability appears to have been fixed in 17.5.0.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1640216
- https://access.redhat.com/security/cve/CVE-2018-1000808
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00014.html
- https://access.redhat.com/errata/RHSA-2019:0085
- https://github.com/pyca/pyopenssl/pull/723
- https://usn.ubuntu.com/3813-1/