#VU81726 Integer overflow in Jetty - CVE-2023-36478

Vulnerability identifier: #VU81726

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-2023-36478

CWE-ID: CWE-190

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Jetty
Server applications / Web servers

Vendor: Eclipse

Description

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

The vulnerability exists due to integer overflow in MetaDataBuilder.checkSize when handling HTTP/2 HPACK header values. A remote attacker can send specially crafted request to the server, trigger an integer overflow and crash the server.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Jetty: 9.4.0.v20161207 - 9.4.52.v20230823, 10.0.0 - 11.0.15

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External links
https://github.com/eclipse/jetty.project/security/advisories/GHSA-wgh7-54f2-x98r
https://github.com/jetty/jetty.project/security/advisories/GHSA-wgh7-54f2-x98r

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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.