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Vigil@nce - Dropbear: four vulnerabilities

September 2016 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 Dropbear.

 Impacted products: Debian, Fedora, openSUSE, openSUSE Leap, Unix
(platform) not comprehensive.
 Severity: 2/4.
 Creation date: 28/07/2016.
 Revision date: 26/09/2016.

DESCRIPTION OF THE VULNERABILITY

Several vulnerabilities were announced in Dropbear.

An attacker can generate a format string attack via Message
Printout, in order to trigger a denial of service, and possibly to
run code. [severity:2/4; CVE-2016-7406]

An attacker can use a vulnerability via dropbearconvert, in order
to run code. [severity:2/4; CVE-2016-7407]

An attacker can use a vulnerability via dbclient, in order to run
code. [severity:2/4; CVE-2016-7408]

An attacker can bypass security features via DEBUG_TRACE, in order
to obtain sensitive information. [severity:1/4; CVE-2016-7409]

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/Dropbear-four-vulnerabilities-20244


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