#VU88113 Resource exhaustion in Apache Traffic Server - CVE-2024-31309

Vulnerability identifier: #VU88113

Vulnerability 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-2024-31309

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Apache Traffic Server
Server applications / Web servers

Vendor: Apache Foundation

Description

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

The vulnerability exists due to insufficient limitations placed on the amount of CONTINUATION frames that can be sent within a single HTTP/2 stream. A remote attacker can send specially crafted HTTP/2 requests to the server and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apache Traffic Server: 8.0.0 - 8.0.8, 8.1.0 - 8.1.9, 9.0.0 - 9.0.2, 9.1.0 - 9.1.4, 9.2.0 - 9.2.3

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=2269627
https://lists.apache.org/thread/0117x8x3fqvt1wnl4y8js5p27nrgo57o

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Q & A

Can this vulnerability be exploited remotely?

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

Is there known malware, which exploits this vulnerability?

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