Multiple vulnerabilities in ISC BIND



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2024-12705
CVE-2024-11187
CWE-ID CWE-399
CWE-400
Exploitation vector Network
Public exploit N/A
Vulnerable software
ISC BIND
Server applications / DNS servers

Vendor ISC

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Resource management error

EUVDB-ID: #VU103437

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:]

CVE-ID: CVE-2024-12705

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources within the application within the DNS-over-HTTPS feature. A remote attacker can send multiple HTTP/2 requests to the server and perform a denial of service (DoS) attack. The vulnerability affects both authoritative servers and resolvers.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ISC BIND: 9.18.0 - 9.21.3

CPE2.3 External links

https://kb.isc.org/docs/cve-2024-12705


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Resource exhaustion

EUVDB-ID: #VU103436

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-2024-11187

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The 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 zones with numerous records in the Additional section. A remote attacker can trigger resource exhaustion by sending multiple queries to he affected server and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ISC BIND: 9.11.0-P1 - 9.21.3

CPE2.3 External links

https://kb.isc.org/docs/cve-2024-11187


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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