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SUSE: 2021:0551-1 Moderate: Fix for Avahi Privilege Escalation

suse
Calendar Grey February 23, 2021
Dist Suse Esm H88
SUSE enhances cups to address CVE-2021-26914, categorized with low severity, to ensure proper access controls.
An update that fixes one vulnerability is now available

Summary

This update for avahi fixes the following issues: - CVE-2021-26720: drop privileges when invoking avahi-daemon-check-dns.sh (bsc#1180827) - Update avahi-daemon-check-dns.sh from Debian. Our previous version relied on ifconfig, route, and init.d. - 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: - SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP2: zypper in -t patch SUSE-SLE-Module-Packagehub-Subpackages-15-SP2-2021-551=1 - SUSE Linux Enterprise Module for Desktop Applications 15-SP2: zypper in -t patch SUSE-SLE-Module-Desktop-Applications-15-SP2-2021-551=1

Topics%20covered

Topics Covered

security advisory moderate privilege escalation CVE fix threat mitigation SUSE avahi

References

#1180827

Cross- CVE-2021-26720

CVSS scores:

CVE-2021-26720 (SUSE): 3.6 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

Affected Products:

SUSE Linux Enterprise Module for Packagehub Subpackages 15-SP2

SUSE Linux Enterprise Module for Desktop Applications 15-SP2

SUSE Linux Enterprise Module for Basesystem 15-SP2

https://www.suse.com/security/cve/CVE-2021-26720.html

https://bugzilla.suse.com/1180827

Announcement ID: SUSE-SU-2021:0551-1
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate privilege escalation CVE fix threat mitigation SUSE avahi

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