CVE-2020-12823

· CRITICALModified

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CVSS v3.1

9.8

EPSS

4.62%

Published

May 12, 2020

Modified

Nov 21, 2024

Public PoC / Exploit (1)

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Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

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

Weaknesses (CWE)

CWE-120

Affected Products (7)

infradead · openconnectvulnerable

fedoraproject · fedoravulnerable

debian · debian_linuxvulnerable

opensuse · leapvulnerable

References (18)

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00039.html

Mailing ListThird Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00056.html

Mailing ListThird Party Advisory

https://bugs.gentoo.org/721570

ExploitThird Party Advisory

https://gitlab.com/openconnect/openconnect/-/merge_requests/108

PatchThird Party Advisory

https://lists.debian.org/debian-lts-announce/2020/05/msg00015.html

Mailing ListThird 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 ListThird Party Advisory

http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00056.html

Mailing ListThird Party Advisory

https://bugs.gentoo.org/721570

ExploitThird Party Advisory

https://gitlab.com/openconnect/openconnect/-/merge_requests/108

PatchThird Party Advisory

https://lists.debian.org/debian-lts-announce/2020/05/msg00015.html

Mailing ListThird 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

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