Observable discrepancy in Libgcrypt

Published: 2021-06-08 | Updated: 2021-09-17

Risk	Medium
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2021-33560
CWE-ID	CWE-203
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Libgcrypt Client/Desktop applications / Encryption software
Vendor	GNU

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Observable discrepancy

EUVDB-ID: #VU56684

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-33560

CWE-ID: CWE-203 - Observable discrepancy

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to observable discrepancy. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Libgcrypt: 1.8.0 - 1.9.2

External links

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.