synced 14 MIN AGO
01 Record

CVE-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.

MediumPUBLISHEDCNA: redhat
CNA base score5.5 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
View raw JSON

02 Description

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.

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.38% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 32.3% of scored records. A rank, not a probability.
NVD base score
5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2023-05-26 00:00Z3 YR AGO
Last updated
2025-11-03 21:47Z11 MO AGO
Reserved
2023-04-11
Assigning CNA
redhat
Record state
PUBLISHED
Severity
Medium (CVSS 5.5)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
  • CWE-400Uncontrolled Resource ConsumptionClass
Data version
5.2
Document digest
309f155d5ef1387e0aea22941e084eaa8298961e04f5a0d192b7a7015d9a496c

05 Affected products

VendorProductVersionsPlatforms
n/aavahiavahi-0.7-20—

06 References

07 Fixed in

AlmaLinux 8

  • avahi
    Fixed in 0.7-21.el8
  • avahi-autoipd
    Fixed in 0.7-21.el8
  • avahi-compat-howl
    Fixed in 0.7-21.el8
  • avahi-compat-howl-devel
    Fixed in 0.7-21.el8
  • avahi-compat-libdns_sd
    Fixed in 0.7-21.el8
  • avahi-compat-libdns_sd-devel
    Fixed in 0.7-21.el8
  • avahi-devel
    Fixed in 0.7-21.el8
  • avahi-glib
    Fixed in 0.7-21.el8
  • avahi-glib-devel
    Fixed in 0.7-21.el8
  • avahi-gobject
    Fixed in 0.7-21.el8
  • avahi-gobject-devel
    Fixed in 0.7-21.el8
  • avahi-libs
    Fixed in 0.7-21.el8
  • avahi-tools
    Fixed in 0.7-21.el8
  • avahi-ui
    Fixed in 0.7-21.el8
  • avahi-ui-devel
    Fixed in 0.7-21.el8
  • avahi-ui-gtk3
    Fixed in 0.7-21.el8
  • python3-avahi
    Fixed in 0.7-21.el8

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 9

  • avahi
    Fixed in 0.8-15.el9
  • avahi-compat-howl
    Fixed in 0.8-15.el9
  • avahi-compat-howl-devel
    Fixed in 0.8-15.el9
  • avahi-compat-libdns_sd
    Fixed in 0.8-15.el9
  • avahi-compat-libdns_sd-devel
    Fixed in 0.8-15.el9
  • avahi-devel
    Fixed in 0.8-15.el9
  • avahi-glib
    Fixed in 0.8-15.el9
  • avahi-glib-devel
    Fixed in 0.8-15.el9
  • avahi-libs
    Fixed in 0.8-15.el9
  • avahi-tools
    Fixed in 0.8-15.el9

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • avahi
    Fixed in 0.7-21.el8
  • avahi-autoipd
    Fixed in 0.7-21.el8
  • avahi-compat-howl
    Fixed in 0.7-21.el8
  • avahi-compat-howl-devel
    Fixed in 0.7-21.el8
  • avahi-compat-libdns_sd
    Fixed in 0.7-21.el8
  • avahi-compat-libdns_sd-devel
    Fixed in 0.7-21.el8
  • avahi-devel
    Fixed in 0.7-21.el8
  • avahi-glib
    Fixed in 0.7-21.el8
  • avahi-glib-devel
    Fixed in 0.7-21.el8
  • avahi-gobject
    Fixed in 0.7-21.el8
  • avahi-gobject-devel
    Fixed in 0.7-21.el8
  • avahi-libs
    Fixed in 0.7-21.el8
  • avahi-tools
    Fixed in 0.7-21.el8
  • avahi-ui
    Fixed in 0.7-21.el8
  • avahi-ui-devel
    Fixed in 0.7-21.el8
  • avahi-ui-gtk3
    Fixed in 0.7-21.el8
  • python3-avahi
    Fixed in 0.7-21.el8

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • avahi
    Fixed in 0.8-15.el9
  • avahi-compat-howl
    Fixed in 0.8-15.el9
  • avahi-compat-howl-devel
    Fixed in 0.8-15.el9
  • avahi-compat-libdns_sd
    Fixed in 0.8-15.el9
  • avahi-compat-libdns_sd-devel
    Fixed in 0.8-15.el9
  • avahi-devel
    Fixed in 0.8-15.el9
  • avahi-glib
    Fixed in 0.8-15.el9
  • avahi-glib-devel
    Fixed in 0.8-15.el9
  • avahi-libs
    Fixed in 0.8-15.el9
  • avahi-tools
    Fixed in 0.8-15.el9

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • avahi
    Fixed in 0.8-10

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • avahi
    Fixed in 0.8-10

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • avahi
    Fixed in 0.8-10

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • avahi
    Fixed in 0.7-4ubuntu7.2

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • avahi
    Fixed in 0.8-5ubuntu5.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 14.04 LTS

  • avahi
    Fixed in 0.6.31-4ubuntu1.3+esm2
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • avahi
    Fixed in 0.6.32~rc+dfsg-1ubuntu2.3+esm2
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • avahi
    Fixed in 0.7-3.1ubuntu1.3+esm1
    Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.