Information disclosure in GnuTLS
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-11501 |
| CWE-ID | CWE-330 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
GnuTLS Universal components / Libraries / Libraries used by multiple products |
| Vendor | GnuTLS |
Security Bulletin
This security bulletin contains information about 1 vulnerabilities.
Updated: 04.04.2020
Assigned CVE-ID.
1) Use of insufficiently random values
EUVDB-ID: #VU26487
Risk: Medium
CVSSv3.1: 6.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2020-11501
CWE-ID:
CWE-330 - Use of Insufficiently Random Values
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to decrypt data.
The vulnerability exists in GnuTLS DTLS protocol implementation due to an error in code that caused DTLS client not to contribute any randomness to the DTLS negotiation. As a result a remote attacker with ability to intercept network traffic can decrypt data passed via TLS 1.3 connection and gain access to sensitive information.
Install updates from vendor's website.
Vulnerable software versionsGnuTLS: 3.6.3 - 3.6.12
External linkshttp://www.gnutls.org/security-new.html#GNUTLS-SA-2020-03-31
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.
