https://bugzilla.suse.com/show_bug.cgi?id=1223176 Bug ID: 1223176 Summary: VUL-0: CVE-2024-32475: envoy: abnormal termination when using auto_sni with authority header longer than 255 characters Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.6 Hardware: Other URL: https://smash.suse.de/issue/402625/ OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Security Assignee: wolfgang.engel@suse.com Reporter: smash_bz@suse.de QA Contact: security-team@suse.de CC: stoyan.manolov@suse.com Target Milestone: --- Found By: Security Response Team Blocker: --- Envoy is a cloud-native, open source edge and service proxy. When an upstream TLS cluster is used with `auto_sni` enabled, a request containing a `host`/`:authority` header longer than 255 characters triggers an abnormal termination of Envoy process. Envoy does not gracefully handle an error when setting SNI for outbound TLS connection. The error can occur when Envoy attempts to use the `host`/`:authority` header value longer than 255 characters as SNI for outbound TLS connection. SNI length is limited to 255 characters per the standard. Envoy always expects this operation to succeed and abnormally aborts the process when it fails. This vulnerability is fixed in 1.30.1, 1.29.4, 1.28.3, and 1.27.5. References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-32475 https://www.cve.org/CVERecord?id=CVE-2024-32475 https://github.com/envoyproxy/envoy/commit/b47fc6648d7c2dfe0093a601d44cb704b... https://github.com/envoyproxy/envoy/security/advisories/GHSA-3mh5-6q8v-25wj https://bugzilla.redhat.com/show_bug.cgi?id=2276149 -- You are receiving this mail because: You are on the CC list for the bug.