SUSE update for go1.16

Published: 2021-03-24

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-27918 CVE-2021-27919
CWE-ID	CWE-835 CWE-20
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	SUSE Linux Enterprise Module for Development Tools Operating systems & Components / Operating system go1.16-race Operating systems & Components / Operating system package or component go1.16-doc Operating systems & Components / Operating system package or component go1.16 Operating systems & Components / Operating system package or component
Vendor	SUSE

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Infinite loop

EUVDB-ID: #VU51486

Risk: Medium

CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-27918

CWE-ID: CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Exploit availability: No

Description

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

The vulnerability exists due to infinite loop when using xml.NewTokenDecoder with a custom TokenReader. A remote attacker can trick a victim to open a specially crafted XML content and cause denial of service conditions.

Mitigation

Update the affected package go1.16 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Module for Development Tools: 15-SP2

go1.16-race: before 1.16.2-1.8.1

go1.16-doc: before 1.16.2-1.8.1

go1.16: before 1.16.2-1.8.1

CPE2.3

External links

https://www.suse.com/support/update/announcement/2021/suse-su-20210937-1/

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) Input validation error

EUVDB-ID: #VU51485