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 Subscribe	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

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

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

cpe:2.3:o:suse:suse_linux_enterprise_module_for_development_tools:15-SP2:*:*:*:*:*:*:....

External links

http://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