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Vulnerability · Published May 12, 2020 · Assigned by mitre

CVE-2020-12823

Critical 9.8

In plain English

A critical-severity security flaw in the openconnect package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.7% (higher than 92% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)4.7%top 8.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12openconnect8.10-1DEBIAN-CVE-2020-12823
Debian:13openconnect8.10-1DEBIAN-CVE-2020-12823
Debian:14openconnect8.10-1DEBIAN-CVE-2020-12823

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References