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Sicherheit: Mangelnde Rechteprüfung in dbus
Aktuelle Meldungen Distributionen
Name: Mangelnde Rechteprüfung in dbus
ID: DSA-4462-1
Distribution: Debian
Plattformen: Debian stretch
Datum: Fr, 14. Juni 2019, 00:02
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12749
Applikationen: D-BUS

Originalnachricht

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Debian Security Advisory DSA-4462-1 security@debian.org
https://www.debian.org/security/ Salvatore Bonaccorso
June 13, 2019 https://www.debian.org/security/faq
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Package : dbus
CVE ID : CVE-2019-12749
Debian Bug : 930375

Joe Vennix discovered an authentication bypass vulnerability in dbus, an
asynchronous inter-process communication system. The implementation of
the DBUS_COOKIE_SHA1 authentication mechanism was susceptible to a
symbolic link attack. A local attacker could take advantage of this flaw
to bypass authentication and connect to a DBusServer with elevated
privileges.

The standard system and session dbus-daemons in their default
configuration are not affected by this vulnerability.

The vulnerability was addressed by upgrading dbus to a new upstream
version 1.10.28 which includes additional fixes.

For the stable distribution (stretch), this problem has been fixed in
version 1.10.28-0+deb9u1.

We recommend that you upgrade your dbus packages.

For the detailed security status of dbus please refer to its security
tracker page at:
https://security-tracker.debian.org/tracker/dbus

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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