CVE-2021-26720 (GCVE-0-2021-26720)
Vulnerability from cvelistv5
Published
2021-02-17 21:19
Modified
2024-08-03 20:33
Severity ?
CWE
  • n/a
Summary
avahi-daemon-check-dns.sh in the Debian avahi package through 0.8-4 is executed as root via /etc/network/if-up.d/avahi-daemon, and allows a local attacker to cause a denial of service or create arbitrary empty files via a symlink attack on files under /run/avahi-daemon. NOTE: this only affects the packaging for Debian GNU/Linux (used indirectly by SUSE), not the upstream Avahi product.
References
cve@mitre.org https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=982796 Mailing List, Third Party Advisory
cve@mitre.org https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1870824 Issue Tracking, Third Party Advisory
cve@mitre.org https://bugzilla.suse.com/show_bug.cgi?id=1180827 Issue Tracking, Third Party Advisory
cve@mitre.org https://lists.debian.org/debian-lts-announce/2022/06/msg00009.html Mailing List, Third Party Advisory
cve@mitre.org https://metadata.ftp-master.debian.org/changelogs/main/a/avahi/avahi_0.8-4_changelog Broken Link, Third Party Advisory
cve@mitre.org https://packages.debian.org/bullseye/avahi-daemon Product, Third Party Advisory
cve@mitre.org https://packages.debian.org/buster/avahi-daemon Product, Third Party Advisory
cve@mitre.org https://packages.debian.org/sid/avahi-daemon Product, Third Party Advisory
cve@mitre.org https://security-tracker.debian.org/tracker/CVE-2021-26720 Third Party Advisory
cve@mitre.org https://www.openwall.com/lists/oss-security/2021/02/15/2 Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=982796 Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1870824 Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://bugzilla.suse.com/show_bug.cgi?id=1180827 Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://lists.debian.org/debian-lts-announce/2022/06/msg00009.html Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://metadata.ftp-master.debian.org/changelogs/main/a/avahi/avahi_0.8-4_changelog Broken Link, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://packages.debian.org/bullseye/avahi-daemon Product, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://packages.debian.org/buster/avahi-daemon Product, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://packages.debian.org/sid/avahi-daemon Product, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://security-tracker.debian.org/tracker/CVE-2021-26720 Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://www.openwall.com/lists/oss-security/2021/02/15/2 Mailing List, Third Party Advisory
Impacted products
Vendor Product Version
n/a n/a Version: n/a
Show details on NVD website

To clipboard 

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  }
}


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