Observable discrepancy in Libgcrypt

Vulnerability identifier: #VU56684

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-33560

CWE-ID: CWE-203

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Libgcrypt
Client/Desktop applications / Encryption software

Vendor: GNU

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

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.

#VU56684 Observable discrepancy in Libgcrypt - CVE-2021-33560