CVE-2024-0760

A flood of DNS messages over TCP may make the server unstable

Description

A malicious client can send many DNS messages over TCP, potentially causing the server to become unstable while the attack is in progress. The server may recover after the attack ceases. Use of ACLs will not mitigate the attack. This issue affects BIND 9 versions 9.18.1 through 9.18.27, 9.19.0 through 9.19.24, and 9.18.11-S1 through 9.18.27-S1.

Remediation

Solution:

  • Upgrade to the patched release most closely related to your current version of BIND 9: 9.18.28, 9.20.0, or 9.18.28-S1.

Workaround:

  • No workarounds known.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 29.73% Top 5%
Vendor Advisory isc.org
Affected: ISC BIND 9
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2024-0760?
CVE-2024-0760 has been scored as a high severity vulnerability.
How to fix CVE-2024-0760?
To fix CVE-2024-0760: Upgrade to the patched release most closely related to your current version of BIND 9: 9.18.28, 9.20.0, or 9.18.28-S1.
Is CVE-2024-0760 being actively exploited in the wild?
It is possible that CVE-2024-0760 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~30% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-0760?
CVE-2024-0760 affects ISC BIND 9.
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