CVE - CVE-2023-29409

CVE-ID
CVE-2023-29409	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
Extremely large RSA keys in certificate chains can cause a client/server to expend significant CPU time verifying signatures. With fix, the size of RSA keys transmitted during handshakes is restricted to <= 8192 bits. Based on a survey of publicly trusted RSA keys, there are currently only three certificates in circulation with keys larger than this, and all three appear to be test certificates that are not actively deployed. It is possible there are larger keys in use in private PKIs, but we target the web PKI, so causing breakage here in the interests of increasing the default safety of users of crypto/tls seems reasonable.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://security.netapp.com/advisory/ntap-20230831-0010/ GENTOO:GLSA-202311-09 URL:https://security.gentoo.org/glsa/202311-09 MISC:https://go.dev/cl/515257 URL:https://go.dev/cl/515257 MISC:https://go.dev/issue/61460 URL:https://go.dev/issue/61460 MISC:https://groups.google.com/g/golang-announce/c/X0b6CsSAaYI/m/Efv5DbZ9AwAJ URL:https://groups.google.com/g/golang-announce/c/X0b6CsSAaYI/m/Efv5DbZ9AwAJ MISC:https://pkg.go.dev/vuln/GO-2023-1987 URL:https://pkg.go.dev/vuln/GO-2023-1987
Assigning CNA
Go Project
Date Record Created
20230405	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20230405)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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