What’s Vulnerable › Vulnerabilities
CVE-2015-8036
- Severity: medium (CVSS 6.8 v2.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 2.9% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2015-11-02 · updated 2026-06-17
- Weakness: CWE-119
Description
Heap-based buffer overflow in 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 session ticket name to the session ticket extension, which is not properly handled when creating a ClientHello message to resume a session. NOTE: this identifier was SPLIT from CVE-2015-5291 per ADT3 due to different affected version ranges.
Affected products
- Debian Linux: 7.0, 8.0
- Fedoraproject Fedora: 21
- Opensuse: 13.2
- PolarSSL: through 1.2.17
- TrustedFirmware Mbed TLS: from 1.3.0 before 1.3.14; from 2.0.0 before 2.1.2 — fixed in 1.3.14, 2.1.2
How to fix
Upgrade to a fixed version: TrustedFirmware Mbed TLS 1.3.14, 2.1.2. Check the vendor advisory for mitigations.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169625.html
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00009.html
- http://www.debian.org/security/2016/dsa-3468
- https://guidovranken.files.wordpress.com/2015/10/cve-2015-5291.pdf
- https://guidovranken.wordpress.com/2015/10/07/cve-2015-5291/
- https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2015-01
- http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169625.html
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00009.html
- http://www.debian.org/security/2016/dsa-3468
- https://guidovranken.files.wordpress.com/2015/10/cve-2015-5291.pdf
- https://guidovranken.wordpress.com/2015/10/07/cve-2015-5291/
- https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2015-01
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