{"cve":"CVE-2015-5291","nvd":{"published":"2015-11-02T19:59:05.123","modified":"2026-06-17T00:28:49.777","status":"Modified","description":"Heap-based buffer overflow in PolarSSL 1.x before 1.2.17 and ARM mbed TLS (formerly PolarSSL) 1.3.x before 1.3.14 and 2.x before 2.1.2 allows remote SSL servers to cause a denial of service (client crash) and possibly execute arbitrary code via a long hostname to the server name indication (SNI) extension, which is not properly handled when creating a ClientHello message.  NOTE: this identifier has been SPLIT per ADT3 due to different affected version ranges. See CVE-2015-8036 for the session ticket issue that was introduced in 1.3.0.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-119"],"references":["http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170317.html","http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169625.html","http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169765.html","http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00013.html","http://lists.opensuse.org/opensuse-updates/2015-12/msg00119.html"],"products":["debian:debian_linux","fedoraproject:fedora","opensuse:leap","opensuse:opensuse","polarssl:polarssl","trustedfirmware:mbed_tls"],"source":"nvd","synced_at":"2026-10-19T20:37:45.466985407+00:00"},"epss":{"cve":"CVE-2015-5291","score":0.03659,"percentile":0.89629,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}