#VU74624 Input validation error in Traefik - CVE-2023-29013

Vulnerability identifier: #VU74624

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-2023-29013

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Traefik
Server applications / Other server solutions

Vendor: Containous

Description

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

The vulnerability exists due to application does not properly control consumption of internal resources when parsing HTTP and MIME headers. A remote attacker can cause an HTTP server to allocate large amounts of memory from a small request and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Traefik: 2.0.0 - 2.0.7, 2.1.0 - 2.1.9, 2.2.0 - 2.2.11, 2.3.0 - 2.3.7, 2.4.0 - 2.4.14, 2.5.0 - 2.5.7, 2.6.0 - 2.6.7, 2.7.0 - 2.7.3, 2.8.0 - 2.8.8, 2.9.0 - 2.9.9

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External links
https://github.com/containous/traefik/releases/tag/v2.9.10
https://github.com/traefik/traefik/security/advisories/GHSA-7hj9-rv74-5g92

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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.