CVE-2018-1000807

Python Cryptographic Authority pyopenssl version prior to version 17.5.0 contains a CWE-416: Use After Free vulnerability in X509 object handling that can result in Use after free can lead to possible denial of service or remote code execution.. This attack appear to be exploitable via Depends on the calling application and if it retains a reference to the memory.. This vulnerability appears to have been fixed in 17.5.0.

• CWE-416

• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00014.htmlMailing List, Third Party Advisory
• https://access.redhat.com/errata/RHSA-2019:0085Third Party Advisory
• https://github.com/pyca/pyopenssl/commit/e73818600065821d588af475b024f4eb518c3509
• 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.htmlMailing List, Third Party Advisory
• https://access.redhat.com/errata/RHSA-2019:0085Third Party Advisory
• https://github.com/pyca/pyopenssl/commit/e73818600065821d588af475b024f4eb518c3509
• 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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