Vigil@nce - libidn: three 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 libidn.
Impacted products: Debian, Fedora, openSUSE, openSUSE Leap,
Slackware, Ubuntu.
Severity: 2/4.
Creation date: 25/07/2016.
DESCRIPTION OF THE VULNERABILITY
Several vulnerabilities were announced in libidn.
An attacker can force a read at an invalid address via
idna_to_ascii_4i, in order to trigger a denial of service, or to
obtain sensitive information. [severity:2/4; CVE-2016-6261]
An attacker can force a read at an invalid address via Zero Byte,
in order to trigger a denial of service, or to obtain sensitive
information. [severity:2/4; CVE-2016-6262]
An attacker can trigger a fatal error via UTF-8, in order to
trigger a denial of service. [severity:2/4; CVE-2016-6263]
ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN
https://vigilance.fr/vulnerability/libidn-three-vulnerabilities-20199