Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2022-30256 CVE-2023-31137 |
CWE-ID | CWE-399 CWE-191 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software |
Fedora Operating systems & Components / Operating system maradns Operating systems & Components / Operating system package or component |
Vendor | Fedoraproject |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU77839
Risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2022-30256
CWE-ID:
CWE-399 - Resource Management Errors
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass expected security restrictions.
The vulnerability exists due to the way MaraDNS handles cached domain names. A revoked domain name can still be resolvable for a long time, including expired domains and taken-down malicious domains.
MitigationInstall updates from vendor's repository.
Vulnerable software versionsFedora: 39
maradns: before 3.5.0036-1.fc39
CPE2.3 External linkshttps://bodhi.fedoraproject.org/updates/FEDORA-2023-3dd938a14d
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: #VU76669
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-2023-31137
CWE-ID:
CWE-191 - Integer underflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to integer underflow when handling a DNS packet with an Answer RR of qtype 16 (TXT record) and any qclass. A remote attacker can send a specially crafted request to the server, trigger an integer underflow and perform a denial of service (DoS) attack.
Install updates from vendor's repository.
Vulnerable software versionsFedora: 39
maradns: before 3.5.0036-1.fc39
CPE2.3 External linkshttps://bodhi.fedoraproject.org/updates/FEDORA-2023-3dd938a14d
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.