SB2015110203 - Code Injection in ARM mbed TLS

Description

This security bulletin contains information about 1 security vulnerability.

1) Code Injection (CVE-ID: CVE-2015-8036)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in 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. A remote attacker can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install update from vendor's website.

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