CVE-2021-26720

Опубликовано: 17 фев. 2021

Источник: nvd

CVSS3: 7.8

CVSS2: 4.6

EPSS Низкий

Описание

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.

Ссылки

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=982796
Mailing List
Third Party Advisory
https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1870824
Issue Tracking
Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1180827
Issue Tracking
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/06/msg00009.html
Mailing List
Third Party Advisory
https://metadata.ftp-master.debian.org/changelogs/main/a/avahi/avahi_0.8-4_changelog
Broken Link
Third Party Advisory
https://packages.debian.org/bullseye/avahi-daemon
Product
Third Party Advisory
https://packages.debian.org/buster/avahi-daemon
Product
Third Party Advisory
https://packages.debian.org/sid/avahi-daemon
Product
Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2021-26720
Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/02/15/2
Mailing List
Third Party Advisory
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=982796
Mailing List
Third Party Advisory
https://bugs.launchpad.net/ubuntu/+source/avahi/+bug/1870824
Issue Tracking
Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1180827
Issue Tracking
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/06/msg00009.html
Mailing List
Third Party Advisory
https://metadata.ftp-master.debian.org/changelogs/main/a/avahi/avahi_0.8-4_changelog
Broken Link
Third Party Advisory
https://packages.debian.org/bullseye/avahi-daemon
Product
Third Party Advisory
https://packages.debian.org/buster/avahi-daemon
Product
Third Party Advisory
https://packages.debian.org/sid/avahi-daemon
Product
Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2021-26720
Third Party Advisory
https://www.openwall.com/lists/oss-security/2021/02/15/2
Mailing List
Third Party Advisory

Уязвимые конфигурации

Конфигурация 1

cpe:2.3:a:avahi:avahi:*:*:*:*:*:*:*:*

Версия до 0.8-4 (включая)

Конфигурация 2

Одно из

cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

EPSS

Процентиль: 21%

0.00069

Низкий

7.8 High

CVSS3

4.6 Medium

CVSS2

Дефекты

CWE-59

Связанные уязвимости

CVE-2021-26720

CVSS3: 7.8

ubuntu

почти 5 лет назад

CVE-2021-26720

CVSS3: 7.8

msrc

около 4 лет назад

Описание отсутствует

CVE-2021-26720

CVSS3: 7.8

debian

почти 5 лет назад

avahi-daemon-check-dns.sh in the Debian avahi package through 0.8-4 is ...

openSUSE-SU-2021:0370-1

suse-cvrf

почти 5 лет назад

Security update for avahi

SUSE-SU-2021:0563-1

suse-cvrf

почти 5 лет назад

Security update for avahi

EPSS

Процентиль: 21%

0.00069

Низкий

7.8 High

CVSS3

4.6 Medium

CVSS2

Дефекты

CWE-59