high
7.4
CWE
203 1300
Advisory Published
CVE Published
CVE Published
Updated

CVE-2023-0361

First published: Fri Jan 20 2023(Updated: )

GnuTLS could allow a remote attacker to obtain sensitive information, caused by a timing side-channel flaw in the handling of RSA ClientKeyExchange messages. By recovering the secret from the ClientKeyExchange message, an attacker could exploit this vulnerability to decrypt the application data exchanged over that connection, and use this information to launch further attacks against the affected system.

Credit: secalert@redhat.com secalert@redhat.com

Affected SoftwareAffected VersionHow to fix
redhat/gnutls<0:3.6.16-6.el8_7
0:3.6.16-6.el8_7
redhat/gnutls<0:3.6.16-5.el8_6.1
0:3.6.16-5.el8_6.1
redhat/gnutls<0:3.7.6-18.el9_1
0:3.7.6-18.el9_1
redhat/gnutls<0:3.7.6-18.el9_0
0:3.7.6-18.el9_0
GNU GnuTLS=3.6.8-11.el8_2
Redhat Enterprise Linux=8.0
Redhat Enterprise Linux=9.0
Debian Debian Linux=10.0
Fedoraproject Fedora=36
Fedoraproject Fedora=37
Fedoraproject Fedora=38
Netapp Active Iq Unified Manager Vmware Vsphere
Netapp Converged Systems Advisor Agent
NetApp ONTAP Select Deploy administration utility
IBM QRadar Network Packet Capture<=7.5.0 - 7.5.0 Update Package 7

Remedy

https://github.com/tlsfuzzer/tlsfuzzer/pull/679

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2023-0361?

    CVE-2023-0361 is a timing side-channel vulnerability found in RSA ClientKeyExchange messages in GnuTLS.

  • What is the severity level of CVE-2023-0361?

    CVE-2023-0361 has a high severity level with a value of 7.

  • Who discovered the CVE-2023-0361 vulnerability?

    The CVE-2023-0361 vulnerability was discovered by the GnuTLS security team.

  • Which software versions are affected by CVE-2023-0361?

    Versions 0:3.6.16-6.el8_7, 0:3.6.16-5.el8_6.1, 0:3.7.6-18.el9_1, and 0:3.7.6-18.el9_0 of GnuTLS are affected by CVE-2023-0361.

  • How can I fix the CVE-2023-0361 vulnerability?

    To fix the CVE-2023-0361 vulnerability, update GnuTLS to version 3.7.7 or higher.

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