Multiple vulnerabilities in Avahi
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2023-38471 CVE-2023-38470 CVE-2023-38469 |
| CWE-ID | CWE-617 |
| Exploitation vector | Network |
| 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 information about 3 vulnerabilities.
1) Reachable Assertion
EUVDB-ID: #VU79308
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-2023-38471
CWE-ID:
CWE-617 - Reachable Assertion
Exploit availability: No
DescriptionThe vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion within the dbus_set_host_name() function. A local user can perform a denial of service (DoS) attack.
Install update from vendor's website.
Vulnerable software versionsAvahi: 0.1 - 0.8
External linkshttp://bugzilla.redhat.com/show_bug.cgi?id=2191691
http://github.com/lathiat/avahi/issues/453
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.
2) Reachable Assertion
EUVDB-ID: #VU79307
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-38470
CWE-ID:
CWE-617 - Reachable Assertion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion within the avahi_escape_label() function. A remote attacker can send specially crafted packets to the system and perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsAvahi: 0.1 - 0.8
External linkshttp://bugzilla.redhat.com/show_bug.cgi?id=2191690
http://github.com/lathiat/avahi/issues/454
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Reachable Assertion
EUVDB-ID: #VU79306
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2023-38469
CWE-ID:
CWE-617 - Reachable Assertion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a reachable assertion within the avahi_dns_packet_append_record() function. A remote attacker can send specially crafted packets to the system and perform a denial of service (DoS) attack.
Install update from vendor's website.
Vulnerable software versionsAvahi: 0.1 - 0.8
External linkshttp://github.com/lathiat/avahi/issues/455
http://bugzilla.redhat.com/show_bug.cgi?id=2191687
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
