drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Denial of Service in Avahi (Aktualisierung)
Name: |
Denial of Service in Avahi (Aktualisierung) |
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ID: |
USN-5008-2 |
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Distribution: |
Ubuntu |
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Plattformen: |
Ubuntu 14.04 ESM, Ubuntu 16.04 ESM |
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Datum: |
Mi, 7. Juli 2021, 23:12 |
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Referenzen: |
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3468 |
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Applikationen: |
Avahi |
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Update von: |
Zwei Probleme in Avahi |
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Originalnachricht |
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========================================================================== Ubuntu Security Notice USN-5008-2 July 07, 2021
avahi vulnerability ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 ESM - Ubuntu 14.04 ESM
Summary:
Avahi could be made to denial of service if it received a specially crafted input.
Software Description: - avahi: Avahi IPv4LL network address configuration daemon
Details:
USN-5008-1 fixed a vulnerability in avahi. This update provides the corresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.
Original advisory details:
Thomas Kremer discovered that Avahi incorrectly handled termination signals on the Unix socket. A local attacker could possibly use this issue to cause Avahi to hang, resulting in a denial of service.
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04 ESM: avahi-daemon 0.6.32~rc+dfsg-1ubuntu2.3+esm1 libavahi-core7 0.6.32~rc+dfsg-1ubuntu2.3+esm1
Ubuntu 14.04 ESM: avahi-daemon 0.6.31-4ubuntu1.3+esm1 libavahi-core7 0.6.31-4ubuntu1.3+esm1
In general, a standard system update will make all the necessary changes.
References: https://ubuntu.com/security/notices/USN-5008-2 https://ubuntu.com/security/notices/USN-5008-1 CVE-2021-3468
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