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…

PriorityP341critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

4.62%

90.7th percentile

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.

Affected

12 ranges

Vendor	Product	Version range	Fixed in
debian	debian_linux	—	—
debian	openconnect	< openconnect 8.10-1 (bookworm)	openconnect 8.10-1 (bookworm)
fedoraproject	fedora	—	—
fedoraproject	fedora	—	—
fedoraproject	fedora	—	—
infradead	openconnect	—	—
infradead	openconnect	>= 0 < 8.10-1	8.10-1
infradead	openconnect	>= 0 < 8.10-1	8.10-1
infradead	openconnect	>= 0 < 8.10-1	8.10-1
infradead	openconnect	>= 0 < 8.10-1	8.10-1
opensuse	leap	—	—
opensuse	leap	—	—

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

osv9.8CRITICAL

vendor_debian9.8LOW

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