Vulnerability · Published Dec 14, 2020 · Assigned by hackerone

CVE-2020-8286

High 7.5

In plain English

A high-severity improper certificate validation in https://github.com/curl/curl. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.6% (higher than 92% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)7.5High
Exploit odds (30 days)4.6%top 8.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

curl 7.41.0 through 7.73.0 is vulnerable to an improper check for certificate revocation due to insufficient verification of the OCSP response.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Alpine:v3.20curl7.74.0-r0ALPINE-CVE-2020-8286
Alpine:v3.21curl7.74.0-r0ALPINE-CVE-2020-8286
Alpine:v3.22curl7.74.0-r0ALPINE-CVE-2020-8286
Alpine:v3.23curl7.74.0-r0ALPINE-CVE-2020-8286
Alpine:v3.24curl7.74.0-r0ALPINE-CVE-2020-8286
Debian:12curl7.74.0-1DEBIAN-CVE-2020-8286
Debian:13curl7.74.0-1DEBIAN-CVE-2020-8286
Debian:14curl7.74.0-1DEBIAN-CVE-2020-8286
Rocky Linux:8curl0:7.61.1-18.el8RLSA-2021:1610

Affected products (as reported)

VendorProductVersions
n/a https://github.com/curl/curl 7.41.0 to and including 7.73.0

Weakness: CWE-295

References