CVE-2015-5291

critical

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.

References

https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2015-01

https://security.gentoo.org/glsa/201706-18

https://guidovranken.wordpress.com/2015/10/07/cve-2015-5291/

https://guidovranken.files.wordpress.com/2015/10/cve-2015-5291.pdf

http://www.debian.org/security/2016/dsa-3468

http://lists.opensuse.org/opensuse-updates/2015-12/msg00119.html

http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00013.html

http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169765.html

http://lists.fedoraproject.org/pipermail/package-announce/2015-October/169625.html

http://lists.fedoraproject.org/pipermail/package-announce/2015-November/170317.html

Details

Source: Mitre, NVD

Published: 2015-11-02

Updated: 2019-06-19

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical