CVE-2024-31309

Apache Traffic Server: HTTP/2 CONTINUATION frames can be utilized for DoS attack

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

HTTP/2 CONTINUATION DoS attack can cause Apache Traffic Server to consume more resources on the server. Version from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.3 are affected.

Users can set a new setting (proxy.config.http2.max_continuation_frames_per_minute) to limit the number of CONTINUATION frames per minute. ATS does have a fixed amount of memory a request can use and ATS adheres to these limits in previous releases.
Users are recommended to upgrade to versions 8.1.10 or 9.2.4 which fixes the issue.

Un ataque de HTTP/2 CONTINUATION DoS puede hacer que Apache Traffic Server consuma más recursos en el servidor. Las versiones de 8.0.0 a 8.1.9 y de 9.0.0 a 9.2.3 se ven afectadas. Los usuarios pueden establecer una nueva configuración (proxy.config.http2.max_continuation_frames_per_minuto) para limitar el número de fotogramas de CONTINUACIÓN por minuto. ATS tiene una cantidad fija de memoria que una solicitud puede usar y ATS cumple con estos límites en versiones anteriores. Se recomienda a los usuarios actualizar a las versiones 8.1.10 o 9.2.4, que solucionan el problema.

*Credits: Bartek Nowotarski

CVSS Scores

CISAv3.1 7.5

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-03-29 CVE Reserved
2024-04-10 CVE Published
2024-04-13 First Exploit
2024-05-02 EPSS Updated
2024-11-12 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-20: Improper Input Validation

CAPEC

References (8)

URL	Tag	Source
http://www.openwall.com/lists/oss-security/2024/04/03/16
http://www.openwall.com/lists/oss-security/2024/04/10/7
https://lists.debian.org/debian-lts-announce/2024/04/msg00021.html
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PBKLPQ6ECG4PGEPRCYI3Y3OITNDEFCCV
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QV77HYM7ARSTL3B6U3IFG7PHDU65WL4I
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T3XON6RM5ZKCZ6K6NB7BOTAWMJQKXJDO

URL	Date	SRC
https://github.com/lockness-Ko/CVE-2024-27316	2024-04-13

URL	Date	SRC

URL	Date	SRC
https://lists.apache.org/thread/f9qh3g3jvy153wh82pz4onrfj1wh13kc	2024-05-01

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apache Software Foundation Search vendor "Apache Software Foundation"		Apache Traffic Server Search vendor "Apache Software Foundation" for product "Apache Traffic Server"				>= 8.0.0 <= 8.1.9 Search vendor "Apache Software Foundation" for product "Apache Traffic Server" and version " >= 8.0.0 <= 8.1.9"		en		Affected
Apache Software Foundation Search vendor "Apache Software Foundation"		Apache Traffic Server Search vendor "Apache Software Foundation" for product "Apache Traffic Server"				>= 9.0.0 <= 9.2.3 Search vendor "Apache Software Foundation" for product "Apache Traffic Server" and version " >= 9.0.0 <= 9.2.3"		en		Affected