Application crash via missing RSA CRT values
Published Jan 28, 2025 · Updated Jan 30, 2025
Improper structure handling in Go standard library crypto/x509 before 1.24.0-rc.2 allows attackers to crash applications via malformed RSA keys. ParsePKCS1PrivateKey decodes optional CRT fields and passes missing values into RSA key validation, where nil CRT operands trigger a panic. Reachability requires a consuming application to pass attacker-controlled PKCS #1 DER into the parser; the panic terminates the calling process unless recovered.
Summary
What happened
Improper structure handling in Go standard library crypto/x509 before 1.24.0-rc.2 allows attackers to crash applications via malformed RSA keys. ParsePKCS1PrivateKey decodes optional CRT fields and passes missing values into RSA key validation, where nil CRT operands trigger a panic. Reachability requires a consuming application to pass attacker-controlled PKCS #1 DER into the parser; the panic terminates the calling process unless recovered.
The record
- CVE
- CVE-2025-22865
- Published
- Jan 28, 2025
- Updated
- Jan 30, 2025
- Vendor
- Go standard library
- Product
- crypto/x509
- Classifications
- CWE-228, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 28, 2025CVE publishedPublication date reported by the CVE source.
- Jan 30, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.24.0-0 <1.24.0-rc.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo