Category Archives: Debian

Debian Security Advisories

DSA-4003 libvirt – security update

Daniel P. Berrange reported that Libvirt, a virtualisation abstraction
library, does not properly handle the default_tls_x509_verify (and
related) parameters in qemu.conf when setting up TLS clients and servers
in QEMU, resulting in TLS clients for character devices and disk devices
having verification turned off and ignoring any errors while validating
the server certificate.

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DSA-4002 mysql-5.5 – security update

Several issues have been discovered in the MySQL database server. The
vulnerabilities are addressed by upgrading MySQL to the new upstream
version 5.5.58, which includes additional changes, such as performance
improvements, bug fixes, new features, and possibly incompatible
changes. Please see the MySQL 5.5 Release Notes and Oracle’s Critical
Patch Update advisory for further details:

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DSA-3998 nss – security update

Martin Thomson discovered that nss, the Mozilla Network Security Service
library, is prone to a use-after-free vulnerability in the TLS 1.2
implementation when handshake hashes are generated. A remote attacker
can take advantage of this flaw to cause an application using the nss
library to crash, resulting in a denial of service, or potentially to
execute arbitrary code.

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DSA-3994 nautilus – security update

Christian Boxdörfer discovered a vulnerability in the handling of
FreeDesktop.org .desktop files in Nautilus, a file manager for the GNOME
desktop environment. An attacker can craft a .desktop file intended to run
malicious commands but displayed as a innocuous document file in Nautilus. An
user would then trust it and open the file, and Nautilus would in turn execute
the malicious content. Nautilus protection of only trusting .desktop files with
executable permission can be bypassed by shipping the .desktop file inside a
tarball.

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