{"id":"DEBIAN-CVE-2026-14457","details":"Issue summary: In a server or client configuration with RFC7250 Raw Public Keys (RPKs) enabled, and only the private key (with no associated certificate) configured locally, a NULL pointer dereference may occur when the remote peer solicits raw public keys and also sends the typically omitted \"signature_algorithms_cert\" TLS extension.  Impact summary: The impact is limited to a possible Denial of Service as a result of an application abort, no data disclosure or remote command execution are possible.  CWE: CWE-476: NULL Pointer Dereference  Description: While a passing comment in sample code in the documentation suggests that key-only RPK configurations are supported, the best-practice RPK configuration is to always configure a corresponding certificate (possibly self-signed or signed by any convenient CA).  When the private key is configured along with a matching certificate, the \"signature_algorithms_cert\" extension is handled reliably even without the fix, and peer clients or servers that don't support raw public keys may be able to complete a TLS connection by pinning or verifying the corresponding certificate or its public key.  Deployments that prefer to configure just a private key with no certificate need to upgrade to an updated release as noted below.  FIPS impact: no  No FIPS modules are affected by this issue, as the SSL protocol implementation is outside the OpenSSL FIPS module boundary.","modified":"2026-09-13T16:00:07.615419359Z","published":"2026-08-25T13:17:49.533Z","upstream":["CVE-2026-14457"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-14457"}],"affected":[{"package":{"name":"openssl","ecosystem":"Debian:13","purl":"pkg:deb/debian/openssl?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.5.7-1~deb13u2"}]}],"versions":["3.5.1-1","3.5.1-1+deb13u1","3.5.2-1","3.5.3-1","3.5.4-1","3.5.4-1~deb13u1","3.5.4-1~deb13u2","3.5.5-1","3.5.5-1~deb13u1","3.5.5-1~deb13u2","3.5.6-1~deb13u1","3.5.6-1~deb13u2","3.5.7-1~deb13u1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14457.json"}},{"package":{"name":"openssl","ecosystem":"Debian:14","purl":"pkg:deb/debian/openssl?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.4-1"}]}],"versions":["3.5.1-1","3.5.2-1","3.5.3-1","3.5.4-1","3.5.4-1~deb13u1","3.5.4-1~deb13u2","3.5.5-1","3.5.5-1~deb13u1","3.5.5-1~deb13u2","3.5.6-1~deb13u1","3.5.6-1~deb13u2","3.5.7-1~deb13u1","3.5.7-1~deb13u2","3.6.0-1","3.6.0-2","3.6.0~~alpha1-1","3.6.0~~beta1-1","3.6.1-1","3.6.1-2","3.6.1-3","3.6.2-1","3.6.3-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14457.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}