VulnerabilityModified
CVE-2021-44718
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.
MEDIUM 5.9EPSS 0.70%
Does this matter?
Lower severity and a low EPSS score (0.70%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.9 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.70% probability · 51th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-835
- Affected
- wolfssl/wolfssl
- Source
- cve@mitre.org
References
- https://github.com/wolfSSL/wolfssl/releasesRelease Notes, Third Party Advisory
- https://www.wolfssl.com/docs/security-vulnerabilities/Vendor Advisory
- https://github.com/wolfSSL/wolfssl/releasesRelease Notes, Third Party Advisory
- https://www.wolfssl.com/docs/security-vulnerabilities/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.