#VU79783 Input validation error in Apache Traffic Server - CVE-2023-33934

Vulnerability identifier: #VU79783

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-2023-33934

CWE-ID: CWE-20

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 validation of user-supplied input when handling HTTP requests. A remote attacker can send a specially crafted HTTP request 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 - 8.1.7, 9.0.0 - 9.0.2, 9.1.0 - 9.1.4, 9.2.0 - 9.2.1

---

External links
https://lists.apache.org/thread/jsl6dfdgs1mjjo1mbtyflyjr7xftswhc
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BOTOM2MFKOLK46Q3BQHO662HTPZFRQUC/

---

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.