ghsa-jhxr-wvf5-hrp6
Vulnerability from github
Published
2022-05-24 17:42
Modified
2022-06-08 00:00
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

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.

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{
   affected: [],
   aliases: [
      "CVE-2021-26720",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-59",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2021-02-17T22:15:00Z",
      severity: "HIGH",
   },
   details: "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.",
   id: "GHSA-jhxr-wvf5-hrp6",
   modified: "2022-06-08T00:00:32Z",
   published: "2022-05-24T17:42:33Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2021-26720",
      },
      {
         type: "WEB",
         url: "https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=982796",
      },
      {
         type: "WEB",
         url: "https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1870824",
      },
      {
         type: "WEB",
         url: "https://bugzilla.suse.com/show_bug.cgi?id=1180827",
      },
      {
         type: "WEB",
         url: "https://lists.debian.org/debian-lts-announce/2022/06/msg00009.html",
      },
      {
         type: "WEB",
         url: "https://metadata.ftp-master.debian.org/changelogs/main/a/avahi/avahi_0.8-4_changelog",
      },
      {
         type: "WEB",
         url: "https://packages.debian.org/bullseye/avahi-daemon",
      },
      {
         type: "WEB",
         url: "https://packages.debian.org/buster/avahi-daemon",
      },
      {
         type: "WEB",
         url: "https://packages.debian.org/sid/avahi-daemon",
      },
      {
         type: "WEB",
         url: "https://security-tracker.debian.org/tracker/CVE-2021-26720",
      },
      {
         type: "WEB",
         url: "https://www.openwall.com/lists/oss-security/2021/02/15/2",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
         type: "CVSS_V3",
      },
   ],
}


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