Fedora EPEL 7 update for golang

Published: 2023-08-20

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-41724 CVE-2022-41725
CWE-ID	CWE-399 CWE-400
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Fedora Operating systems & Components / Operating system golang Operating systems & Components / Operating system package or component
Vendor	Fedoraproject

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Resource management error

EUVDB-ID: #VU72685

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-2022-41724

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

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

The vulnerability exists due to improper management of internal resources in crypto/tls when handling large TLS handshake records. A remote attacker can send specially crafted data to the application and perform a denial of service (DoS) attack.

The vulnerability affects all TLS 1.3 clients, TLS 1.2 clients which explicitly enable session resumption (by setting Config.ClientSessionCache to a non-nil value), and TLS 1.3 servers which request client certificates (by setting Config.ClientAuth >= RequestClientCert).

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Fedora: 7

golang: before 1.19.6-1.el7

CPE2.3

External links

https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-ba899b9717

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) Resource exhaustion

EUVDB-ID: #VU73722