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Vigil@nce - OpenSSL: multiple vulnerabilities

March 2017 by Vigil@nce

This bulletin was written by Vigil@nce : https://vigilance.fr/offer

SYNTHESIS OF THE VULNERABILITY

An attacker can use several vulnerabilities of OpenSSL.

Impacted products: Blue Coat CAS, ProxyAV, ProxySG, SGOS, Cisco
ASR, Cisco ATA, AsyncOS, Cisco Catalyst, Cisco Content SMA, Cisco
ESA, IOS XE Cisco, IOS XR Cisco, Nexus by Cisco, NX-OS, Cisco
Prime Access Registrar, Prime Collaboration Assurance, Cisco Prime
DCNM, Prime Infrastructure, Cisco Router, Cisco CUCM, Cisco
MeetingPlace, Cisco Wireless IP Phone, Cisco WSA, Cisco Wireless
Controller, Debian, BIG-IP Hardware, TMOS, Fedora, FileZilla
Server, FreeBSD, AIX, Copssh, Juniper Network Connect, ePO,
Meinberg NTP Server, OpenSSL, openSUSE Leap, pfSense, Pulse
Connect Secure, Pulse Secure Client, RHEL, Slackware, stunnel,
Nessus, Ubuntu, VxWorks.

Severity: 2/4.

Creation date: 26/01/2017.

DESCRIPTION OF THE VULNERABILITY

Several vulnerabilities were announced in OpenSSL.

An attacker can force a read at an invalid address via Truncated
Packet, in order to trigger a denial of service, or to obtain
sensitive information. [severity:2/4; CVE-2017-3731]

An attacker can force a NULL pointer to be dereferenced via
DHE/ECDHE Parameters, in order to trigger a denial of service.
[severity:2/4; CVE-2017-3730]

An attacker can use a carry propagation error via BN_mod_exp(), in
order to compute the private key. [severity:1/4; CVE-2017-3732]

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

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/OpenSSL-multiple-vulnerabilities-21692


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