DEBIAN-CVE-2023-6237
- Source
- https://security-tracker.debian.org/tracker/CVE-2023-6237
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2023-6237.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2023-6237
- Upstream
- Published
- 2024-04-25T07:15:45Z
- Modified
- 2025-09-19T07:32:45.790401Z
- Summary
- [none]
- Details
-
Issue summary: Checking excessively long invalid RSA public keys may take a long time. Impact summary: Applications that use the function EVPPKEYpubliccheck() to check RSA public keys may experience long delays. Where the key that is being checked has been obtained from an untrusted source this may lead to a Denial of Service. When function EVPPKEYpubliccheck() is called on RSA public keys, a computation is done to confirm that the RSA modulus, n, is composite. For valid RSA keys, n is a product of two or more large primes and this computation completes quickly. However, if n is an overly large prime, then this computation would take a long time. An application that calls EVPPKEYpubliccheck() and supplies an RSA key obtained from an untrusted source could be vulnerable to a Denial of Service attack. The function EVPPKEYpubliccheck() is not called from other OpenSSL functions however it is called from the OpenSSL pkey command line application. For that reason that application is also vulnerable if used with the '-pubin' and '-check' options on untrusted data. The OpenSSL SSL/TLS implementation is not affected by this issue. The OpenSSL 3.0 and 3.1 FIPS providers are affected by this issue.
- References
Affected packages
Debian:12 / openssl
Package
- Name
- openssl
- Purl
- pkg:deb/debian/openssl?arch=source
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed3.0.13-1~deb12u1
Debian:13 / openssl
Package
- Name
- openssl
- Purl
- pkg:deb/debian/openssl?arch=source
Debian:14 / openssl
Package
- Name
- openssl
- Purl
- pkg:deb/debian/openssl?arch=source