CVE-2023-1981
published 2023-05-26CVE-2023-1981: A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call, causing the avahi daemon to crash.
PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.39%
31.4th percentile
A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call, causing the avahi daemon to crash.
Affected
19 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| avahi | avahi | — | — |
| avahi | avahi | — | — |
| avahi | avahi | >= 0 < 0.8-5+deb11u3 | 0.8-5+deb11u3 |
| avahi | avahi | >= 0 < 0.8-10 | 0.8-10 |
| avahi | avahi | >= 0 < 0.8-10 | 0.8-10 |
| avahi | avahi | >= 0 < 0.8-10 | 0.8-10 |
| debian | avahi | < avahi 0.8-10 (bookworm) | avahi 0.8-10 (bookworm) |
| fedoraproject | fedora | — | — |
| msrc | azl3_avahi_0.8-3_on_azure_linux_3.0 | — | — |
| msrc | azl3_avahi_0.8-5_on_azure_linux_3.0 | — | — |
| msrc | azure_linux_3.0_arm | — | — |
| msrc | azure_linux_3.0_x64 | — | — |
| msrc | cbl2_avahi_0.8-2_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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OSV
CVE-2023-1981: A vulnerability was found in the avahi library
osv·2023-05-26·CVSS 5.5
CVE-2023-1981 [MEDIUM] CVE-2023-1981: A vulnerability was found in the avahi library
A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call, causing the avahi daemon to crash.
GHSA
GHSA-55h6-xcvg-4r99: A vulnerability was found in the avahi library
ghsa_unreviewed·2023-05-26
CVE-2023-1981 [MEDIUM] CWE-400 GHSA-55h6-xcvg-4r99: A vulnerability was found in the avahi library
A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call, causing the avahi daemon to crash.
Ubuntu
Avahi vulnerability
vendor_ubuntu·2023-07-25
CVE-2023-1981 Avahi vulnerability
Title: Avahi vulnerability
Summary: Avahi could be made to crash if it received specially crafted DBus traffic.
USN-6129-1 fixed a vulnerability in Avahi. This update provides the
corresponding update for Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 18.04
LTS.
Original advisory details:
It was discovered that Avahi incorrectly handled certain DBus messages. A
local attacker could possibly use this issue to cause Avahi to crash,
resulting in a denial of service.
Instructions: In general, a standard system update will make all the necessary changes.
Ubuntu
Avahi vulnerability
vendor_ubuntu·2023-06-01
CVE-2023-1981 Avahi vulnerability
Title: Avahi vulnerability
Summary: Avahi could be made to crash if it received specially crafted DBus traffic.
It was discovered that Avahi incorrectly handled certain DBus messages. A
local attacker could possibly use this issue to cause Avahi to crash,
resulting in a denial of service.
Instructions: In general, a standard system update will make all the necessary changes.
Microsoft
A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call causing the avahi daemon to crash.
vendor_msrc·2023-05-09·CVSS 5.5
CVE-2023-1981 [MEDIUM] CWE-400 A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call causing the avahi daemon to crash.
A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call causing the avahi daemon to crash.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
redhat: redhat
Cus
Debian
CVE-2023-1981: avahi - A vulnerability was found in the avahi library. This flaw allows an unprivileged...
vendor_debian·2023·CVSS 5.5
CVE-2023-1981 [MEDIUM] CVE-2023-1981: avahi - A vulnerability was found in the avahi library. This flaw allows an unprivileged...
A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call, causing the avahi daemon to crash.
Scope: local
bookworm: resolved (fixed in 0.8-10)
bullseye: resolved (fixed in 0.8-5+deb11u3)
forky: resolved (fixed in 0.8-10)
sid: resolved (fixed in 0.8-10)
trixie: resolved (fixed in 0.8-10)
Red Hat
avahi: avahi-daemon can be crashed via DBus
vendor_redhat·2022-04-26·CVSS 5.5
CVE-2023-1981 [MEDIUM] CWE-400 avahi: avahi-daemon can be crashed via DBus
avahi: avahi-daemon can be crashed via DBus
A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call, causing the avahi daemon to crash.
A vulnerability was found in the avahi library. This flaw allows an unprivileged user to make a dbus call, causing the avahi daemon to crash.
Package: avahi (Red Hat Enterprise Linux 6) - Out of support scope
Package: avahi (Red Hat Enterprise Linux 7) - Out of support scope
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://access.redhat.com/security/cve/CVE-2023-1981https://bugzilla.redhat.com/show_bug.cgi?id=2185911https://github.com/lathiat/avahi/issues/375https://access.redhat.com/security/cve/CVE-2023-1981https://bugzilla.redhat.com/show_bug.cgi?id=2185911https://github.com/lathiat/avahi/issues/375https://lists.debian.org/debian-lts-announce/2024/12/msg00011.html
2023-05-26
Published