QID 750101

Date Published: 2021-06-07

QID 750101: SUSE Enterprise Linux Security Update for avahi (SUSE-SU-2021:1845-1)

This update for avahi fixes the following issues: - cve-2021-3468: avoid infinite loop by handling hup event in client_work (bsc#1184521).
- 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.

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Successful exploitation allows attacker to compromise the system.

  • CVSS V3 rated as High - 7.8 severity.
  • CVSS V2 rated as Medium - 4.6 severity.
    • Solution
    Upgrade to the latest package which contains the patch. To install this SUSE Security, Update use YaST online_update. Alternatively you can run the command listed for your product. To install packages using the command line interface, use command "yum update". Refer to Suse security advisory: SUSE-SU-2021:1845-1 to address this issue and obtain further details.
    Vendor References

    CVEs related to QID 750101

    CVE-2021-3468 | CVE-2021-26720 |
    Software Advisories
    Advisory ID Software Component Link
    SUSE-SU-2021:1845-1 SUSE Enterprise Linux URL Logo lists.suse.com/pipermail/sle-security-updates/2021-June/008925.html
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