2.1 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.9 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
5.1%
Debian LTS Advisory DLA-3466-1 [email protected]
https://www.debian.org/lts/security/ Bastien Roucariès
June 21, 2023 https://wiki.debian.org/LTS
Package : avahi
Version : 0.7-4+deb10u3
CVE ID : CVE-2021-3468
Debian Bug : 984938
Avahi a free zero-configuration networking (zeroconf) implementation,
including a system for multicast DNS/DNS-SD service discovery, was
affected by a Deny of Service. The event used to signal the termination of
the client connection on the avahi Unix socket is not correctly handled
in the client_work function, allowing a local attacker to trigger
an infinite loop.
For Debian 10 buster, this problem has been fixed in version
0.7-4+deb10u3.
We recommend that you upgrade your avahi packages.
For the detailed security status of avahi please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/avahi
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 9 | armhf | libavahi-core7 | < 0.6.32-2+deb9u1 | libavahi-core7_0.6.32-2+deb9u1_armhf.deb |
Debian | 11 | ppc64el | libavahi-client3-dbgsym | < 0.8-5+deb11u2 | libavahi-client3-dbgsym_0.8-5+deb11u2_ppc64el.deb |
Debian | 11 | mips64el | libavahi-glib1 | < 0.8-5+deb11u2 | libavahi-glib1_0.8-5+deb11u2_mips64el.deb |
Debian | 11 | mipsel | libavahi-gobject-dev | < 0.8-5+deb11u2 | libavahi-gobject-dev_0.8-5+deb11u2_mipsel.deb |
Debian | 9 | armhf | libavahi-ui-dev | < 0.6.32-2+deb9u1 | libavahi-ui-dev_0.6.32-2+deb9u1_armhf.deb |
Debian | 11 | mips64el | python3-avahi | < 0.8-5+deb11u2 | python3-avahi_0.8-5+deb11u2_mips64el.deb |
Debian | 10 | amd64 | libavahi-ui-gtk3-dev | < 0.7-4+deb10u3 | libavahi-ui-gtk3-dev_0.7-4+deb10u3_amd64.deb |
Debian | 11 | amd64 | libavahi-client-dev | < 0.8-5+deb11u2 | libavahi-client-dev_0.8-5+deb11u2_amd64.deb |
Debian | 11 | arm64 | avahi-daemon | < 0.8-5+deb11u2 | avahi-daemon_0.8-5+deb11u2_arm64.deb |
Debian | 9 | armhf | libavahi-ui-gtk3-0 | < 0.6.32-2+deb9u1 | libavahi-ui-gtk3-0_0.6.32-2+deb9u1_armhf.deb |
2.1 Low
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.9 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
5.1%