Vulnerability CVE-2020-12823
Published: 2020-05-12

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.

Type:

CWE-120

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

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Infradead -> Openconnect 

 References:
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/AYSXLXAPXD2T73T6JMHI5G2WP7KHAGMN/
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