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vulnerability bulletin CVE-2016-7053 CVE-2016-7054 CVE-2016-7055

OpenSSL 1.1: three vulnerabilities

Synthesis of the vulnerability

An attacker can use several vulnerabilities of OpenSSL 1.1.
Impacted products: Cisco ASR, Cisco Aironet, Cisco ATA, Cisco AnyConnect Secure Mobility Client, ASA, AsyncOS, Cisco ESA, IOS by Cisco, IOS XR Cisco, Nexus by Cisco, NX-OS, Cisco Prime LMS, Cisco Router, Secure ACS, Cisco CUCM, Cisco Unified CCX, Cisco IP Phone, Cisco MeetingPlace, Cisco Wireless IP Phone, Cisco Wireless Controller, NetWorker, VNX Operating Environment, VNX Series, FortiAnalyzer, FortiAnalyzer Virtual Appliance, FortiOS, IRAD, Tivoli Storage Manager, Junos OS, Juniper Network Connect, NSM Central Manager, NSMXpress, SRX-Series, MySQL Community, MySQL Enterprise, Data ONTAP, OpenSSL, openSUSE Leap, Oracle Communications, Oracle Directory Server, Oracle Directory Services Plus, Oracle Fusion Middleware, Oracle Identity Management, Oracle iPlanet Web Server, Oracle OIT, Solaris, Tuxedo, WebLogic, Oracle Web Tier, Percona Server, pfSense, Pulse Connect Secure, Pulse Secure Client.
Severity of this bulletin: 2/4.
Consequences of an intrusion: denial of service on service, denial of service on client.
Hacker's origin: internet client.
Number of vulnerabilities in this bulletin: 3.
Creation date: 10/11/2016.
Revision date: 13/12/2016.
Références of this threat: 2004036, 2004940, 2011567, 492284, 492616, bulletinapr2017, CERTFR-2018-AVI-343, cisco-sa-20161114-openssl, cpuapr2019, cpujan2018, cpujul2017, CVE-2016-7053, CVE-2016-7054, CVE-2016-7055, ESA-2016-148, ESA-2016-149, FG-IR-17-019, JSA10775, NTAP-20170127-0001, NTAP-20170310-0002, NTAP-20180201-0001, openSUSE-SU-2017:0527-1, openSUSE-SU-2017:0941-1, openSUSE-SU-2018:0458-1, SA40423, VIGILANCE-VUL-21093.

Description of the vulnerability

Several vulnerabilities were announced in OpenSSL 1.1.

An attacker can generate a buffer overflow via ChaCha20/Poly1305, in order to trigger a denial of service. [severity:2/4; CVE-2016-7054]

An attacker can force a NULL pointer to be dereferenced via CMS Structures, in order to trigger a denial of service. [severity:2/4; CVE-2016-7053]

An error occurs in the Broadwell-specific Montgomery Multiplication Procedure, but with no apparent impact. [severity:1/4; CVE-2016-7055]
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