#VU85065 Resource exhaustion in quic-go - CVE-2023-49295

Vulnerability identifier: #VU85065

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-2023-49295

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
quic-go
Universal components / Libraries / Libraries used by multiple products

Vendor: quic-go

Description

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

The vulnerability exists due to application does not limit the number of queued PATH_RESPONSE and retransmits PATH_CHALLENGE and PATH_RESPONSE frames. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

quic-go: 0.37.0 - 0.37.6, 0.38.0 - 0.38.1, 0.39.0 - 0.39.3, 0.40.0

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External links
https://github.com/quic-go/quic-go/releases/tag/v0.37.7
https://github.com/quic-go/quic-go/releases/tag/v0.38.2
https://github.com/quic-go/quic-go/releases/tag/v0.39.4
https://github.com/quic-go/quic-go/releases/tag/v0.40.1
https://github.com/quic-go/quic-go/pull/4199
https://github.com/quic-go/quic-go/pull/4200

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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.