Resource exhaustion in Golang Go
CVE-2022-41724
Large handshake records may cause panics in crypto/tls. Both clients and servers may send large TLS handshake records which cause servers and clients, respectively, to panic when attempting to construct responses. This affects all TLS 1.3 clients, TLS 1.2 clients which explicitly enable session resumption (by setting Config.ClientSessionCache to a non-nil value), and TLS 1.3 servers which request client certificates (by setting Config.ClientAuth >= RequestClientCert).
Vulnerability class: DoS (Denial of Service)
EPSS: 0.011 (62.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Golang Go — versions 1.20.0
- Go Standard Library Crypto/tls — versions 0, 1.20.0-0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@golang.org (Patch, Issue Tracking, Vendor Advisory)
- security@golang.org (Patch, Release Notes)
- security@golang.org (Mailing List, Vendor Advisory)
- security@golang.org (Vendor Advisory)
- security@golang.org
Frequently asked questions
- What is CVE-2022-41724?
- CVE-2022-41724 is a high-severity vulnerability in Golang Go, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2023-02-28.
- How severe is CVE-2022-41724?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-41724 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.