CVE-2021-26720

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-26720
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-26720.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-26720
Related
Published
2021-02-17T22:15:12Z
Modified
2024-05-22T16:00:04Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
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.

References

Affected packages

Alpine:v3.10 / avahi

Package

Name
avahi
Purl
pkg:apk/alpine/avahi?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0

Alpine:v3.11 / avahi

Package

Name
avahi
Purl
pkg:apk/alpine/avahi?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0

Alpine:v3.12 / avahi

Package

Name
avahi
Purl
pkg:apk/alpine/avahi?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0

Alpine:v3.13 / avahi

Package

Name
avahi
Purl
pkg:apk/alpine/avahi?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0

Alpine:v3.14 / avahi

Package

Name
avahi
Purl
pkg:apk/alpine/avahi?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0

Alpine:v3.15 / avahi

Package

Name
avahi
Purl
pkg:apk/alpine/avahi?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0

Alpine:v3.16 / avahi

Package

Name
avahi
Purl
pkg:apk/alpine/avahi?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0

Alpine:v3.17 / avahi

Package

Name
avahi
Purl
pkg:apk/alpine/avahi?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0

Alpine:v3.18 / avahi

Package

Name
avahi
Purl
pkg:apk/alpine/avahi?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0

Alpine:v3.19 / avahi

Package

Name
avahi
Purl
pkg:apk/alpine/avahi?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0

Alpine:v3.20 / avahi

Package

Name
avahi
Purl
pkg:apk/alpine/avahi?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0