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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