Fedora 40 update for golang-github-nats-io, golang-github-nats-io-jwt-2, golang-github-nats-io-nkeys, golang-github-nats-io-streaming-server, nats-server

Published: 2023-11-20

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-39325 CVE-2023-46129
CWE-ID	CWE-400 CWE-321
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Fedora Operating systems & Components / Operating system nats-server Operating systems & Components / Operating system package or component golang-github-nats-io-streaming-server Operating systems & Components / Operating system package or component golang-github-nats-io-nkeys Operating systems & Components / Operating system package or component golang-github-nats-io-jwt-2 Operating systems & Components / Operating system package or component golang-github-nats-io Operating systems & Components / Operating system package or component
Vendor	Fedoraproject

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Resource exhaustion

EUVDB-ID: #VU82064

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-2023-39325

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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

The vulnerability exists due to excessive consumption of internal resources when handling HTTP/2 requests. A remote attacker can bypass the http2.Server.MaxConcurrentStreams setting by creating new connections while the current connections are still being processed, trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 40

nats-server: before 2.10.5-1.fc40

golang-github-nats-io-streaming-server: before 0.25.6-1.fc40

golang-github-nats-io-nkeys: before 0.4.6-1.fc40

golang-github-nats-io-jwt-2: before 2.5.3-1.fc40

golang-github-nats-io: before 1.31.0-1.fc40

CPE2.3

External links

https://bodhi.fedoraproject.org/updates/FEDORA-2023-5f984129b2

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.

2) Use of Hard-coded Cryptographic Key

EUVDB-ID: #VU82552