Vulnerability · Published May 20, 2021 · Assigned by jpcert
CVE-2021-20718
High 7.5
In plain English
A high-severity security flaw in mod_auth_openidc from ZmartZone. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.4% (higher than 89% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)3.4%top 11.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
mod_auth_openidc 2.4.0 to 2.4.7 allows a remote attacker to cause a denial-of-service (DoS) condition via unspecified vectors.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | libapache2-mod-auth-openidc | 2.4.4.1-2 | DEBIAN-CVE-2021-20718 |
| Debian:13 | libapache2-mod-auth-openidc | 2.4.4.1-2 | DEBIAN-CVE-2021-20718 |
| Debian:14 | libapache2-mod-auth-openidc | 2.4.4.1-2 | DEBIAN-CVE-2021-20718 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| ZmartZone | mod_auth_openidc | 2.4.0 to 2.4.7 |
References
- https://www.zmartzone.eu/ x_refsource_MISC
- https://github.com/zmartzone/mod_auth_openidc x_refsource_MISC
- https://jvn.jp/en/jp/JVN49704918/index.html x_refsource_MISC
- FEDORA-2021-cc85f79f63 vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-46b017b771 vendor-advisory, x_refsource_FEDORA
- https://www.oracle.com/security-alerts/cpujan2022.html x_refsource_MISC