Multiple vulnerabilities in Go



Published: 2022-04-10 | Updated: 2022-06-14
Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2022-27191
CVE-2022-28327
CVE-2022-24675
CWE-ID CWE-327
CWE-190
CWE-120
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Go programming language
Universal components / Libraries / Scripting languages

Vendor Google

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

Updated 13.04.2022

Added fixed version.

Updated 14.06.2022

Added vulnerabilities #2-3.

1) Use of a broken or risky cryptographic algorithm

EUVDB-ID: #VU62039

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2022-27191

CWE-ID: CWE-327 - Use of a Broken or Risky Cryptographic Algorithm

Exploit availability: No

Description

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

The vulnerability exists due to an error in golang.org/x/crypto/ssh before 0.0.0-20220314234659-1baeb1ce4c0b, as used in Go programming language. A remote attacker can crash a server in certain circumstances involving AddHostKey.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Go programming language: 1.16 - 1.17.8

CPE2.3 External links

http://groups.google.com/g/golang-announce/c/-cp44ypCT5s


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Integer overflow

EUVDB-ID: #VU64269

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-28327

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow in the Golang's library crypto/elliptic. A remote attacker can send a specially crafted scalar input longer than 32 bytes to cause P256().ScalarMult or P256().ScalarBaseMult to panic and perform a denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Go programming language: 1 - 1.18

CPE2.3 External links

http://groups.google.com/g/golang-announce
http://groups.google.com/g/golang-announce/c/oecdBNLOml8
http://bugzilla.redhat.com/show_bug.cgi?id=2077689


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

3) Buffer overflow

EUVDB-ID: #VU64266

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-24675

CWE-ID: CWE-120 - Buffer overflow

Exploit availability: No

Description

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

The vulnerability exists in the Golang's library encoding/pem. A remote attacker can send to victim a large (more than 5 MB) PEM input to cause a stack overflow in Decode and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Go programming language: 1 - 1.18

CPE2.3 External links

http://groups.google.com/g/golang-announce
http://groups.google.com/g/golang-announce/c/oecdBNLOml8
http://bugzilla.redhat.com/show_bug.cgi?id=2077688


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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