Vulnerability · Published Sep 2, 2022 · Assigned by mitre
CVE-2021-44718
Medium 5.9
In plain English
A medium-severity security flaw in the wolfssl package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.8% (higher than 56% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)5.9Medium
Exploit odds (30 days)0.8%top 43.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
wolfSSL through 5.0.0 allows an attacker to cause a denial of service and infinite loop in the client component by sending crafted traffic from a Machine-in-the-Middle (MITM) position. The root cause is that the client module accepts TLS messages that normally are only sent to TLS servers.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | wolfssl | 5.1.1-1 | DEBIAN-CVE-2021-44718 |
| Debian:13 | wolfssl | 5.1.1-1 | DEBIAN-CVE-2021-44718 |
| Ubuntu:22.04:LTS | wolfssl | no fix listed | UBUNTU-CVE-2021-44718 |
Affected products (as reported)
References
- https://www.wolfssl.com/docs/security-vulnerabilities/ x_refsource_MISC
- https://github.com/wolfSSL/wolfssl/releases x_refsource_MISC