CVE-2020-12823

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2020-12823
OpenConnect 8.09 has a buffer overflow, causing a denial of service (application crash) or possibly unspecified other impact, via crafted certificate data to get_cert_name in gnutls.c.

9.8 /10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5 /10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References
Link Resource
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00039.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00056.html Mailing List Third Party Advisory
https://bugs.gentoo.org/721570 Exploit Third Party Advisory
https://gitlab.com/openconnect/openconnect/-/merge_requests/108 Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/05/msg00015.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/25MFX4AZE7RDCUWOL4ZOE73YBOPUMQDX/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AYSXLXAPXD2T73T6JMHI5G2WP7KHAGMN/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEVTIH5UFX35CC7MVSYBGRM3D66ACFD5/
https://security.gentoo.org/glsa/202006-15 Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00039.html Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00056.html Mailing List Third Party Advisory
https://bugs.gentoo.org/721570 Exploit Third Party Advisory
https://gitlab.com/openconnect/openconnect/-/merge_requests/108 Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/05/msg00015.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/25MFX4AZE7RDCUWOL4ZOE73YBOPUMQDX/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AYSXLXAPXD2T73T6JMHI5G2WP7KHAGMN/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEVTIH5UFX35CC7MVSYBGRM3D66ACFD5/
https://security.gentoo.org/glsa/202006-15 Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:infradead:openconnect:8.09:*:*:*:*:*:*:*

Configuration 2 (hide)

OR cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*

Configuration 3 (hide)

cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

Configuration 4 (hide)

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

21 Nov 2024, 05:00

Type Values Removed Values Added
References () http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00039.html - Mailing List, Third Party Advisory () http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00039.html - Mailing List, Third Party Advisory
References () http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00056.html - Mailing List, Third Party Advisory () http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00056.html - Mailing List, Third Party Advisory
References () https://bugs.gentoo.org/721570 - Exploit, Third Party Advisory () https://bugs.gentoo.org/721570 - Exploit, Third Party Advisory
References () https://gitlab.com/openconnect/openconnect/-/merge_requests/108 - Patch, Third Party Advisory () https://gitlab.com/openconnect/openconnect/-/merge_requests/108 - Patch, Third Party Advisory
References () https://lists.debian.org/debian-lts-announce/2020/05/msg00015.html - Mailing List, Third Party Advisory () https://lists.debian.org/debian-lts-announce/2020/05/msg00015.html - Mailing List, Third Party Advisory
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/25MFX4AZE7RDCUWOL4ZOE73YBOPUMQDX/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/25MFX4AZE7RDCUWOL4ZOE73YBOPUMQDX/ -
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AYSXLXAPXD2T73T6JMHI5G2WP7KHAGMN/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AYSXLXAPXD2T73T6JMHI5G2WP7KHAGMN/ -
References () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEVTIH5UFX35CC7MVSYBGRM3D66ACFD5/ - () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEVTIH5UFX35CC7MVSYBGRM3D66ACFD5/ -
References () https://security.gentoo.org/glsa/202006-15 - Third Party Advisory () https://security.gentoo.org/glsa/202006-15 - Third Party Advisory

07 Nov 2023, 03:15

Type Values Removed Values Added
References
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/25MFX4AZE7RDCUWOL4ZOE73YBOPUMQDX/', 'name': 'FEDORA-2020-bc22f06aa3', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AYSXLXAPXD2T73T6JMHI5G2WP7KHAGMN/', 'name': 'FEDORA-2020-143735a624', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BEVTIH5UFX35CC7MVSYBGRM3D66ACFD5/', 'name': 'FEDORA-2020-2af15c566e', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/25MFX4AZE7RDCUWOL4ZOE73YBOPUMQDX/ -
  • () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AYSXLXAPXD2T73T6JMHI5G2WP7KHAGMN/ -
  • () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEVTIH5UFX35CC7MVSYBGRM3D66ACFD5/ -
Information

Published : 2020-05-12 18:15

Updated : 2024-11-21 05:00

NVD link : CVE-2020-12823

Mitre link : CVE-2020-12823

CVE.ORG link : CVE-2020-12823

JSON object : View

Products Affected

debian

  • debian_linux

infradead

  • openconnect

opensuse

  • leap

fedoraproject

  • fedora
CWE
CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')