Vulnerability CVE-2021-20231
Published: 2021-03-12

Description:
A flaw was found in gnutls. A use after free issue in client sending key_share extension may lead to memory corruption and other consequences.

Type:

CWE-416

 (Use After Free)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Redhat -> Enterprise linux 
GNU -> Gnutls 

 References:
https://bugzilla.redhat.com/show_bug.cgi?id=1922276
https://www.gnutls.org/security-new.html#GNUTLS-SA-2021-03-10
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