Denial of service in ISC Bind



Published: 2022-05-18
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-1183
CWE-ID CWE-617
Exploitation vector Network
Public exploit N/A
Vulnerable software
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ISC BIND
Server applications / DNS servers

Vendor ISC

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Reachable Assertion

EUVDB-ID: #VU63409

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-2022-1183

CWE-ID: CWE-617 - Reachable Assertion

Exploit availability: No

Description

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

The vulnerability exists due to a reachable assertion that can be triggered if a TLS connection to a configured http TLS listener with a defined endpoint is destroyed too early. A remote attacker can send specially crafted request and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

ISC BIND: 9.18.0 - 9.19.0


CPE2.3 External links

http://kb.isc.org/docs/cve-2022-1183

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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