Local denial of service in Avahi
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2023-1981 |
| CWE-ID | CWE-20 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Avahi Universal components / Libraries / Libraries used by multiple products |
| Vendor | avahi.org |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Input validation error
EUVDB-ID: #VU75444
Risk: Low
CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-1981
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input. A local user can initiate a DBUS call to the daemon and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsAvahi: 0.1 - 0.8
External linkshttp://github.com/lathiat/avahi/issues/375
http://bugzilla.redhat.com/show_bug.cgi?id=2185911
http://bugzilla.suse.com/show_bug.cgi?id=1210328
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
