CVE-2018-1000808

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.

• CWE-404

• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00014.html
• https://access.redhat.com/errata/RHSA-2019:0085Third Party Advisory
• https://github.com/pyca/pyopenssl/pull/723Patch, Third Party Advisory
• https://usn.ubuntu.com/3813-1/Third Party Advisory
• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00014.html
• https://access.redhat.com/errata/RHSA-2019:0085Third Party Advisory
• https://github.com/pyca/pyopenssl/pull/723Patch, Third Party Advisory
• https://usn.ubuntu.com/3813-1/Third Party Advisory

Published

Oct 8, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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