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.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

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

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
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
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://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/25MFX4AZE7RDCUWOL4ZOE73YBOPUMQDX/
https://security.gentoo.org/glsa/202006-15
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00039.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00056.html

Configurations

Configuration 1 (hide)

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

Information

Published : 2020-05-12 18:15

Updated : 2020-07-21 21:15

NVD link : CVE-2020-12823

Mitre link : CVE-2020-12823

JSON object : View

Products Affected

infradead

openconnect

CWE

CWE-120

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

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