Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2023-3341 CVE-2023-4236 |
CWE-ID | CWE-400 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software |
Ubuntu Operating systems & Components / Operating system bind9 (Ubuntu package) Operating systems & Components / Operating system package or component |
Vendor | Canonical Ltd. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU80931
Risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2023-3341
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when handling control channel messages . A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
MitigationUpdate the affected package bind9 to the latest version.
Vulnerable software versionsUbuntu: 20.04 - 23.04
bind9 (Ubuntu package): before 1:9.16.1-0ubuntu2.16
CPE2.3https://ubuntu.com/security/notices/USN-6390-1
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.
EUVDB-ID: #VU80930
Risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2023-4236
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources when handling DNS-over-TLS queries. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
MitigationUpdate the affected package bind9 to the latest version.
Vulnerable software versionsUbuntu: 20.04 - 23.04
bind9 (Ubuntu package): before 1:9.16.1-0ubuntu2.16
CPE2.3https://ubuntu.com/security/notices/USN-6390-1
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.