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golang tls

About this tag
The golang tls tag covers discussions about the Go programming language's crypto/tls package, including security vulnerabilities and their impact on Microsoft products. A key topic is CVE-2023-29409, a denial-of-service vulnerability where extremely large RSA keys in certificate chains cause excessive CPU usage during TLS handshakes. This affects Azure Linux, as Microsoft's MSRC confirmed the open-source library is included and potentially vulnerable. The tag also explores broader implications for Go TLS implementations in enterprise environments, emphasizing the need for proper key size validation and certificate chain handling to prevent resource exhaustion attacks.
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    CVE-2023-29409: Go TLS RSA Key Size DoS and Azure Linux Attestation

    CVE-2023-29409 exposes a subtle but important risk in the Go standard library’s crypto/tls package: extremely large RSA keys in certificate chains can force a TLS endpoint to burn excessive CPU cycles while verifying signatures, and Microsoft’s brief MSRC wording that “Azure Linux includes this...
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    • azure linux cve 2023 29409 golang tls security patching
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    • Forum: Security Alerts
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