// For flags

CVE-2024-0760

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

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

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.

Un cliente malintencionado puede enviar muchos mensajes DNS a través de TCP, lo que podría provocar que el servidor se vuelva inestable mientras el ataque está en curso. El servidor puede recuperarse una vez que cese el ataque. El uso de ACL no mitigará el ataque. Este problema afecta a las versiones 9.18.1 a 9.18.27, 9.19.0 a 9.19.24 y 9.18.11-S1 a 9.18.27-S1 de BIND 9.

It was discovered that Bind incorrectly handled a flood of DNS messages over TCP. A remote attacker could possibly use this issue to cause Bind to become unstable, resulting in a denial of service. Toshifumi Sakaguchi discovered that Bind incorrectly handled having a very large number of RRs existing at the same time. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-01-19 CVE Reserved
  • 2024-07-23 CVE Published
  • 2025-02-13 CVE Updated
  • 2025-03-12 First Exploit
  • 2025-05-31 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-770: Allocation of Resources Without Limits or Throttling
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
ISC
Search vendor "ISC"
 BIND 9
Search vendor "ISC" for product "BIND 9"
 >= 9.18.1 <= 9.18.27
Search vendor "ISC" for product "BIND 9" and version " >= 9.18.1 <= 9.18.27"
en
Affected
ISC
Search vendor "ISC"
 BIND 9
Search vendor "ISC" for product "BIND 9"
 >= 9.19.0 <= 9.19.24
Search vendor "ISC" for product "BIND 9" and version " >= 9.19.0 <= 9.19.24"
en
Affected