Resource exhaustion in Avahi
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.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.004 (30.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Avahi — versions 0.7-20
- Fedoraproject Fedora — versions 37
- Red Hat Enterprise Linux — versions 6.0, 7.0, 8.0
- Avahi — versions avahi-0.7-20
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/security/cve/CVE-2023-1981 (Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- github.com/lathiat/avahi/issues/375 (Exploit, Third Party Advisory, Issue Tracking)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-1981?
- CVE-2023-1981 is a medium-severity vulnerability in Avahi, classified under Uncontrolled Resource Consumption. CVSS score: 5.5/10. Published 2023-05-26.
- How severe is CVE-2023-1981?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2023-1981 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.