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CVE-2021-20231

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.

Risk Information

Base Score
9.8
MODERATE
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score
Exploitation Probability
0.917

Associated Vulnerability

VulnerabilityOS Platform
GNU TLS library (USN-5029-1) libgnutls30_3.6.13-2ubuntu1.6_i386.debLinux
GNU TLS library (USN-5029-1) libgnutls30_3.6.13-2ubuntu1.6_amd64.debLinux
Gnutls update (ELSA-2021-4451) gnutls-3.6.16-4.el8.i686.rpmLinux
Gnutls update (ELSA-2021-4451) gnutls-3.6.16-4.el8.x86_64.rpmLinux
Gnutls-c++ update (ELSA-2021-4451) gnutls-c++-3.6.16-4.el8.i686.rpmLinux
Gnutls-c++ update (ELSA-2021-4451) gnutls-c++-3.6.16-4.el8.x86_64.rpmLinux
Gnutls-dane update (ELSA-2021-4451) gnutls-dane-3.6.16-4.el8.i686.rpmLinux
Gnutls-dane update (ELSA-2021-4451) gnutls-dane-3.6.16-4.el8.x86_64.rpmLinux
Gnutls-devel update (ELSA-2021-4451) gnutls-devel-3.6.16-4.el8.i686.rpmLinux
Gnutls-devel update (ELSA-2021-4451) gnutls-devel-3.6.16-4.el8.x86_64.rpmLinux
Gnutls-utils update (ELSA-2021-4451) gnutls-utils-3.6.16-4.el8.x86_64.rpmLinux
Nettle update (ELSA-2021-4451) nettle-3.4.1-7.el8.i686.rpmLinux
Nettle update (ELSA-2021-4451) nettle-3.4.1-7.el8.x86_64.rpmLinux
Nettle-devel update (ELSA-2021-4451) nettle-devel-3.4.1-7.el8.i686.rpmLinux
Nettle-devel update (ELSA-2021-4451) nettle-devel-3.4.1-7.el8.x86_64.rpmLinux
Moderate: gnutls and nettle security, bug fix, and enhancement update nettle-3.4.1-7.el8.x86_64.rpmLinux
Moderate: gnutls and nettle security, bug fix, and enhancement update nettle-devel-3.4.1-7.el8.i686.rpmLinux
Moderate: gnutls and nettle security, bug fix, and enhancement update nettle-devel-3.4.1-7.el8.x86_64.rpmLinux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234