CVE-2020-12823 Information

Description

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00039.html http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00056.html https://bugs.gentoo.org/721570 https://gitlab.com/openconnect/openconnect/-/merge_requests/108 https://lists.debian.org/debian-lts-announce/2020/05/msg00015.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/25MFX4AZE7RDCUWOL4ZOE73YBOPUMQDX/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AYSXLXAPXD2T73T6JMHI5G2WP7KHAGMN/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BEVTIH5UFX35CC7MVSYBGRM3D66ACFD5/ https://security.gentoo.org/glsa/202006-15

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8