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