http://bugzilla.opensuse.org/show_bug.cgi?id=1196429 Bug ID: 1196429 Summary: VUL-0: CVE-2022-21657: envoy-proxy: X.509 Extended Key Usage and Trust Purposes bypass Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.3 Hardware: Other URL: https://smash.suse.de/issue/324526/ OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Security Assignee: dmueller@suse.com Reporter: carlos.lopez@suse.com QA Contact: security-team@suse.de Found By: Security Response Team Blocker: --- rh#2057272 Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions Envoy does not restrict the set of certificates it accepts from the peer, either as a TLS client or a TLS server, to only those certificates that contain the necessary extendedKeyUsage (id-kp-serverAuth and id-kp-clientAuth, respectively). This means that a peer may present an e-mail certificate (e.g. id-kp-emailProtection), either as a leaf certificate or as a CA in the chain, and it will be accepted for TLS. This is particularly bad when combined with the issue described in pull request #630, in that it allows a Web PKI CA that is intended only for use with S/MIME, and thus exempted from audit or supervision, to issue TLS certificates that will be accepted by Envoy. As a result Envoy will trust upstream certificates that should not be trusted. There are no known workarounds to this issue. Users are advised to upgrade. References: https://bugzilla.redhat.com/show_bug.cgi?id=2057272 http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-21657 https://github.com/envoyproxy/envoy/security/advisories/GHSA-837m-wjrv-vm5g http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-21657 https://github.com/envoyproxy/envoy/pull/630 http://www.cvedetails.com/cve/CVE-2022-21657/ -- You are receiving this mail because: You are on the CC list for the bug.