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AUSCERT External Security Bulletin Redistribution
ESB-2021.0682
Security update for avahi
24 February 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: avahi
Publisher: SUSE
Operating System: SUSE
Impact/Access: Create Arbitrary Files -- Existing Account
Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-26720
Reference: ESB-2021.0674
Original Bulletin:
https://www.suse.com/support/update/announcement/2021/suse-su-20210563-1
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SUSE Security Update: Security update for avahi
______________________________________________________________________________
Announcement ID: SUSE-SU-2021:0563-1
Rating: moderate
References: #1180827
Cross-References: CVE-2021-26720
Affected Products:
SUSE Linux Enterprise Workstation Extension 12-SP5
SUSE Linux Enterprise Software Development Kit 12-SP5
SUSE Linux Enterprise Server 12-SP5
______________________________________________________________________________
An update that fixes one vulnerability is now available.
Description:
This update for avahi fixes the following issues:
o CVE-2021-26720: drop privileges when invoking avahi-daemon-check-dns.sh
(bsc#1180827)
o Add sudo to requires: used to drop privileges.
Patch Instructions:
To install this SUSE Security Update use the SUSE recommended installation
methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
o SUSE Linux Enterprise Workstation Extension 12-SP5:
zypper in -t patch SUSE-SLE-WE-12-SP5-2021-563=1
o SUSE Linux Enterprise Software Development Kit 12-SP5:
zypper in -t patch SUSE-SLE-SDK-12-SP5-2021-563=1
o SUSE Linux Enterprise Server 12-SP5:
zypper in -t patch SUSE-SLE-SERVER-12-SP5-2021-563=1
Package List:
o SUSE Linux Enterprise Workstation Extension 12-SP5 (x86_64):
avahi-glib2-debugsource-0.6.32-32.12.3
libavahi-gobject0-0.6.32-32.12.3
libavahi-gobject0-debuginfo-0.6.32-32.12.3
libavahi-ui-gtk3-0-0.6.32-32.12.3
libavahi-ui-gtk3-0-debuginfo-0.6.32-32.12.3
libavahi-ui0-0.6.32-32.12.3
libavahi-ui0-debuginfo-0.6.32-32.12.3
o SUSE Linux Enterprise Software Development Kit 12-SP5 (aarch64 ppc64le
s390x x86_64):
avahi-compat-howl-devel-0.6.32-32.12.2
avahi-compat-mDNSResponder-devel-0.6.32-32.12.2
avahi-debuginfo-0.6.32-32.12.2
avahi-debugsource-0.6.32-32.12.2
avahi-glib2-debugsource-0.6.32-32.12.3
libavahi-devel-0.6.32-32.12.2
libavahi-glib-devel-0.6.32-32.12.3
libavahi-gobject-devel-0.6.32-32.12.3
libavahi-gobject0-0.6.32-32.12.3
libavahi-gobject0-debuginfo-0.6.32-32.12.3
libavahi-ui-gtk3-0-0.6.32-32.12.3
libavahi-ui-gtk3-0-debuginfo-0.6.32-32.12.3
libavahi-ui0-0.6.32-32.12.3
libavahi-ui0-debuginfo-0.6.32-32.12.3
libhowl0-0.6.32-32.12.2
libhowl0-debuginfo-0.6.32-32.12.2
python-avahi-0.6.32-32.12.2
typelib-1_0-Avahi-0_6-0.6.32-32.12.3
o SUSE Linux Enterprise Server 12-SP5 (aarch64 ppc64le s390x x86_64):
avahi-0.6.32-32.12.2
avahi-debuginfo-0.6.32-32.12.2
avahi-debugsource-0.6.32-32.12.2
avahi-glib2-debugsource-0.6.32-32.12.3
avahi-utils-0.6.32-32.12.2
avahi-utils-debuginfo-0.6.32-32.12.2
libavahi-client3-0.6.32-32.12.2
libavahi-client3-debuginfo-0.6.32-32.12.2
libavahi-common3-0.6.32-32.12.2
libavahi-common3-debuginfo-0.6.32-32.12.2
libavahi-core7-0.6.32-32.12.2
libavahi-core7-debuginfo-0.6.32-32.12.2
libavahi-glib1-0.6.32-32.12.3
libavahi-glib1-debuginfo-0.6.32-32.12.3
libdns_sd-0.6.32-32.12.2
libdns_sd-debuginfo-0.6.32-32.12.2
o SUSE Linux Enterprise Server 12-SP5 (s390x x86_64):
avahi-debuginfo-32bit-0.6.32-32.12.2
libavahi-client3-32bit-0.6.32-32.12.2
libavahi-client3-debuginfo-32bit-0.6.32-32.12.2
libavahi-common3-32bit-0.6.32-32.12.2
libavahi-common3-debuginfo-32bit-0.6.32-32.12.2
libavahi-glib1-32bit-0.6.32-32.12.3
libavahi-glib1-debuginfo-32bit-0.6.32-32.12.3
libdns_sd-32bit-0.6.32-32.12.2
libdns_sd-debuginfo-32bit-0.6.32-32.12.2
o SUSE Linux Enterprise Server 12-SP5 (noarch):
avahi-lang-0.6.32-32.12.2
References:
o https://www.suse.com/security/cve/CVE-2021-26720.html
o https://bugzilla.suse.com/1180827
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