Ubuntu update for golang-yaml.v2

Published: 2023-08-14

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-4235 CVE-2022-3064
CWE-ID	CWE-400
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Ubuntu Operating systems & Components / Operating system golang-yaml.v2-dev (Ubuntu package) Operating systems & Components / Operating system package or component golang-gopkg-yaml.v2-dev (Ubuntu package) Operating systems & Components / Operating system package or component
Vendor	Canonical Ltd.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Resource exhaustion

EUVDB-ID: #VU71361

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-2021-4235

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 application does not properly control consumption of internal resources when parsing YAML files. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Update the affected package golang-yaml.v2 to the latest version.

Vulnerable software versions

Ubuntu: 16.04 - 20.04

golang-yaml.v2-dev (Ubuntu package): before Ubuntu Pro

golang-gopkg-yaml.v2-dev (Ubuntu package): before Ubuntu Pro

CPE2.3

External links

https://ubuntu.com/security/notices/USN-6287-1

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: #VU72314