SUSE update for go1.16

Published: 2021-06-29 | Updated: 2022-10-19

Risk	Medium
Patch available	YES
Number of vulnerabilities	4
CVE-ID	CVE-2021-33195 CVE-2021-33196 CVE-2021-33197 CVE-2021-33198
CWE-ID	CWE-79 CWE-400 CWE-862 CWE-399
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 4 vulnerabilities.

1) Cross-site scripting

EUVDB-ID: #VU56022

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-33195

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of data passed from DNS lookups. A remote attacker can send a specially crafted DNS reqponse and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

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

Vulnerable software versions

SUSE Linux Enterprise Module for Development Tools: 15-SP2 - 15-SP3

go1.16-race: before 1.16.5-1.17.1

go1.16-doc: before 1.16.5-1.17.1

go1.16: before 1.16.5-1.17.1

CPE2.3

External links

https://www.suse.com/support/update/announcement/2021/suse-su-20212186-1/

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: #VU54521

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-2021-33196

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 archives. A remote attacker can pass a specially crafted .zip file to the application, trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

SUSE Linux Enterprise Module for Development Tools: 15-SP2 - 15-SP3

go1.16-race: before 1.16.5-1.17.1

go1.16-doc: before 1.16.5-1.17.1

go1.16: before 1.16.5-1.17.1

CPE2.3

External links

https://www.suse.com/support/update/announcement/2021/suse-su-20212186-1/

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.

3) Missing Authorization

EUVDB-ID: #VU56023

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-33197

CWE-ID: CWE-862 - Missing Authorization

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authorization process.

The vulnerability exists due to an error in some configurations of ReverseProxy (from net/http/httputil). A remote attacker can drop arbitrary headers and bypass authorization process.

Mitigation

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

Vulnerable software versions

SUSE Linux Enterprise Module for Development Tools: 15-SP2 - 15-SP3

go1.16-race: before 1.16.5-1.17.1

go1.16-doc: before 1.16.5-1.17.1

go1.16: before 1.16.5-1.17.1

CPE2.3

External links

https://www.suse.com/support/update/announcement/2021/suse-su-20212186-1/

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.

4) Resource management error

EUVDB-ID: #VU56024

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-2021-33198

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 within the application when handling a large exponent to the math/big.Rat SetString or UnmarshalText method. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation

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

Vulnerable software versions

SUSE Linux Enterprise Module for Development Tools: 15-SP2 - 15-SP3

go1.16-race: before 1.16.5-1.17.1

go1.16-doc: before 1.16.5-1.17.1

go1.16: before 1.16.5-1.17.1

CPE2.3

External links

https://www.suse.com/support/update/announcement/2021/suse-su-20212186-1/

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.