CVE-2020-24659

An issue was discovered in GnuTLS before 3.6.15. A server can trigger a NULL pointer dereference in a TLS 1.3 client if a no_renegotiation alert is sent with unexpected timing, and then an invalid second handshake occurs. The crash happens in the application's error handling path, where the gnutls_deinit function is called after detecting a handshake failure.
References
Link Resource
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00054.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00060.html Mailing List Third Party Advisory
https://gitlab.com/gnutls/gnutls/-/issues/1071 Exploit Issue Tracking Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62BUAI4FQQLG6VTKRT7SUZPGJJ4NASQ3/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AWN56FDLQQXT2D2YHNI4TYH432TDMQ7N/
https://security.gentoo.org/glsa/202009-01 Third Party Advisory
https://security.netapp.com/advisory/ntap-20200911-0006/ Third Party Advisory
https://usn.ubuntu.com/4491-1/ Third Party Advisory
https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-09-04 Vendor Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00054.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00060.html Mailing List Third Party Advisory
https://gitlab.com/gnutls/gnutls/-/issues/1071 Exploit Issue Tracking Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62BUAI4FQQLG6VTKRT7SUZPGJJ4NASQ3/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AWN56FDLQQXT2D2YHNI4TYH432TDMQ7N/
https://security.gentoo.org/glsa/202009-01 Third Party Advisory
https://security.netapp.com/advisory/ntap-20200911-0006/ Third Party Advisory
https://usn.ubuntu.com/4491-1/ Third Party Advisory
https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-09-04 Vendor Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*

Configuration 4 (hide)

cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*

History

21 Nov 2024, 05:15

Type Values Removed Values Added
References () http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00054.html - Mailing List, Third Party Advisory () http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00054.html - Mailing List, Third Party Advisory
References () http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00060.html - Mailing List, Third Party Advisory () http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00060.html - Mailing List, Third Party Advisory
References () https://gitlab.com/gnutls/gnutls/-/issues/1071 - Exploit, Issue Tracking, Third Party Advisory () https://gitlab.com/gnutls/gnutls/-/issues/1071 - Exploit, Issue Tracking, Third Party Advisory
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62BUAI4FQQLG6VTKRT7SUZPGJJ4NASQ3/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62BUAI4FQQLG6VTKRT7SUZPGJJ4NASQ3/ -
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AWN56FDLQQXT2D2YHNI4TYH432TDMQ7N/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AWN56FDLQQXT2D2YHNI4TYH432TDMQ7N/ -
References () https://security.gentoo.org/glsa/202009-01 - Third Party Advisory () https://security.gentoo.org/glsa/202009-01 - Third Party Advisory
References () https://security.netapp.com/advisory/ntap-20200911-0006/ - Third Party Advisory () https://security.netapp.com/advisory/ntap-20200911-0006/ - Third Party Advisory
References () https://usn.ubuntu.com/4491-1/ - Third Party Advisory () https://usn.ubuntu.com/4491-1/ - Third Party Advisory
References () https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-09-04 - Vendor Advisory () https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-09-04 - Vendor Advisory

27 Feb 2023, 15:30

Type Values Removed Values Added
CPE cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
References (SUSE) http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00054.html - (SUSE) http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00054.html - Mailing List, Third Party Advisory
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AWN56FDLQQXT2D2YHNI4TYH432TDMQ7N/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AWN56FDLQQXT2D2YHNI4TYH432TDMQ7N/ - Mailing List, Third Party Advisory
References (MISC) https://gitlab.com/gnutls/gnutls/-/issues/1071 - Exploit, Third Party Advisory (MISC) https://gitlab.com/gnutls/gnutls/-/issues/1071 - Exploit, Issue Tracking, Third Party Advisory
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/62BUAI4FQQLG6VTKRT7SUZPGJJ4NASQ3/ - Third Party Advisory (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/62BUAI4FQQLG6VTKRT7SUZPGJJ4NASQ3/ - Mailing List, Third Party Advisory
References (UBUNTU) https://usn.ubuntu.com/4491-1/ - (UBUNTU) https://usn.ubuntu.com/4491-1/ - Third Party Advisory
References (SUSE) http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00060.html - (SUSE) http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00060.html - Mailing List, Third Party Advisory

Information

Published : 2020-09-04 15:15

Updated : 2024-11-21 05:15


NVD link : CVE-2020-24659

Mitre link : CVE-2020-24659

CVE.ORG link : CVE-2020-24659


JSON object : View

Products Affected

canonical

  • ubuntu_linux

fedoraproject

  • fedora

gnu

  • gnutls

opensuse

  • leap
CWE
CWE-476

NULL Pointer Dereference

CWE-787

Out-of-bounds Write