MEDIUM 6.5 Microsoft PoC
CVE-2021-34558
The crypto/tls package of Go through 1.16.5 does not properly assert that the type of public key in an X.509 certificate matches the expected type when doing a RSA based key exchange allowing a malicious TLS server to cause a TLS client to panic.
Microsoft Security Update 2021-Jul: The crypto/tls package of Go through 1.16.5 does not properly assert that the type of public key in an X.509 certificate matches the expected type when doing a RSA based key exchange allowing a malicious TLS server to cause a TLS client to panic.
Affected Products
- cm1 golang 1.16.7-1 on CBL Mariner 1.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-34558
- https://nvd.nist.gov/vuln/detail/CVE-2021-34558
This medium severity vulnerability with a CVSS score of 6.5 was published on 2021-07-13 via Microsoft. 🚨 A public proof-of-concept exploit is available on GitHub. EPSS score: 7.0% (top 6% of all CVEs by exploitation probability). Affected: cm1 golang 1.16.7-1 on CBL Mariner 1.0.
vulnfeed aggregates 7759 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.