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| author | Tomas Mraz <tomas@openssl.org> | 2024-01-09 18:08:22 +0100 |
|---|---|---|
| committer | Tomas Mraz <tomas@openssl.org> | 2024-01-15 10:54:34 +0100 |
| commit | 38b2508f638787842750aec9a75745e1d8786743 (patch) | |
| tree | 8bf11af5adbbd1d8ee9e2e0648935b156af3b8a3 | |
| parent | Limit the execution time of RSA public key check (diff) | |
| download | openssl-38b2508f638787842750aec9a75745e1d8786743.tar.xz openssl-38b2508f638787842750aec9a75745e1d8786743.zip | |
Add CHANGES.md and NEWS.md entries for CVE-2023-6237
Reviewed-by: Neil Horman <nhorman@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/23243)
| -rw-r--r-- | CHANGES.md | 23 | ||||
| -rw-r--r-- | NEWS.md | 6 |
2 files changed, 28 insertions, 1 deletions
diff --git a/CHANGES.md b/CHANGES.md index 58d06ae498..ffef5c25c9 100644 --- a/CHANGES.md +++ b/CHANGES.md @@ -81,6 +81,28 @@ OpenSSL 3.2 ### Changes between 3.2.0 and 3.2.1 [xx XXX xxxx] + * When function EVP_PKEY_public_check() 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 EVP_PKEY_public_check() and supplies an RSA key + obtained from an untrusted source could be vulnerable to a Denial of Service + attack. + + The function EVP_PKEY_public_check() 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. + + To resolve this issue RSA keys larger than OPENSSL_RSA_MAX_MODULUS_BITS will + now fail the check immediately with an RSA_R_MODULUS_TOO_LARGE error reason. + + ([CVE-2023-6237]) + + *Tomáš Mráz* + * Restore the encoding of SM2 PrivateKeyInfo and SubjectPublicKeyInfo to have the contained AlgorithmIdentifier.algorithm set to id-ecPublicKey rather than SM2. @@ -20412,6 +20434,7 @@ ndif <!-- Links --> +[CVE-2023-6237]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6237 [CVE-2023-6129]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6129 [CVE-2023-5678]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5678 [CVE-2023-5363]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5363 @@ -31,7 +31,10 @@ OpenSSL 3.2 ### Major changes between OpenSSL 3.2.0 and OpenSSL 3.2.1 [under development] - * Fix POLY1305 MAC implementation corrupting vector registers on PowerPC + * Fixed Excessive time spent checking invalid RSA public keys + ([CVE-2023-6237]) + + * Fixed POLY1305 MAC implementation corrupting vector registers on PowerPC CPUs which support PowerISA 2.07 ([CVE-2023-6129]) @@ -1582,6 +1585,7 @@ OpenSSL 0.9.x <!-- Links --> +[CVE-2023-6237]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6237 [CVE-2023-6129]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-6129 [CVE-2023-5678]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5678 [CVE-2023-5363]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-5363 |