Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-40528 |
CWE-ID | CWE-327 |
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.
EUVDB-ID: #VU56685
Risk: Medium
CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-40528
CWE-ID:
CWE-327 - Use of a Broken or Risky Cryptographic Algorithm
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to use of a broken or risky cryptographic algorithm in the ElGamal implementation. A remote attacker can gain unauthorized access to sensitive information on the system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsLibgcrypt: 1.2.3 - 1.9.3
External linkshttp://ibm.github.io/system-security-research-updates/2021/07/20/insecurity-elgamal-pt1
http://ibm.github.io/system-security-research-updates/2021/09/06/insecurity-elgamal-pt2
http://eprint.iacr.org/2021/923
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.