Memory Corruption Vulnerability in GnuTLS Library by GnuTLS
CVE-2021-20232

9.8CRITICAL

Key Information:

Vendor

Gnu
Status
Gnutls
Vendor
CVE Published:
12 March 2021

What is CVE-2021-20232?

A flaw in the GnuTLS library involves a use after free issue within the client_send_params function located in lib/ext/pre_shared_key.c. This vulnerability could lead to memory corruption, potentially allowing attackers to exploit system resources or gain unauthorized access to sensitive data.

Affected Version(s)

gnutls gnutls 3.7.1

References

https://www.gnutls.org/security-new.html#GNUTLS-SA-2021-0...
x_refsource_MISC
https://bugzilla.redhat.com/show_bug.cgi?id=1922275
x_refsource_MISC
https://lists.fedoraproject.org/archives/list/package-ann...
vendor-advisoryx_refsource_FEDORA

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2021-20232 : Memory Corruption Vulnerability in GnuTLS Library by GnuTLS