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Debian Security Advisory 3161-1

Debian Security Advisory 3161-1
Posted Feb 12, 2015
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3161-1 - Simon McVittie discovered a local denial of service flaw in dbus, an asynchronous inter-process communication system. On systems with systemd-style service activation, dbus-daemon does not prevent forged ActivationFailure messages from non-root processes. A malicious local user could use this flaw to trick dbus-daemon into thinking that systemd failed to activate a system service, resulting in an error reply back to the requester.

tags | advisory, denial of service, local, root
systems | linux, debian
advisories | CVE-2015-0245
SHA-256 | 2aa70c387619edf5818fcdac52d8d84392b4ab17ce8511cb0c1f79f7b11e9cc6

Debian Security Advisory 3161-1

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Hash: SHA512

- -------------------------------------------------------------------------
Debian Security Advisory DSA-3161-1 security@debian.org
http://www.debian.org/security/ Salvatore Bonaccorso
February 11, 2015 http://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : dbus
CVE ID : CVE-2015-0245
Debian Bug : 777545

Simon McVittie discovered a local denial of service flaw in dbus, an
asynchronous inter-process communication system. On systems with
systemd-style service activation, dbus-daemon does not prevent forged
ActivationFailure messages from non-root processes. A malicious local
user could use this flaw to trick dbus-daemon into thinking that systemd
failed to activate a system service, resulting in an error reply back to
the requester.

For the stable distribution (wheezy), this problem has been fixed in
version 1.6.8-1+deb7u6.

For the unstable distribution (sid), this problem has been fixed in
version 1.8.16-1.

We recommend that you upgrade your dbus packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org
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