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| -rw-r--r-- | CHANGES.md | 20 | ||||
| -rw-r--r-- | NEWS.md | 2 |
2 files changed, 22 insertions, 0 deletions
diff --git a/CHANGES.md b/CHANGES.md index 6cfba54e72..28ed897231 100644 --- a/CHANGES.md +++ b/CHANGES.md @@ -286,6 +286,25 @@ OpenSSL 3.1 ### Changes between 3.1.1 and 3.1.2 [xx XXX xxxx] + * Fix DH_check() excessive time with over sized modulus + + The function DH_check() performs various checks on DH parameters. One of + those checks confirms that the modulus ("p" parameter) is not too large. + Trying to use a very large modulus is slow and OpenSSL will not normally use + a modulus which is over 10,000 bits in length. + + However the DH_check() function checks numerous aspects of the key or + parameters that have been supplied. Some of those checks use the supplied + modulus value even if it has already been found to be too large. + + A new limit has been added to DH_check of 32,768 bits. Supplying a + key/parameters with a modulus over this size will simply cause DH_check() to + fail. + + ([CVE-2023-3446]) + + *Matt Caswell* + * Do not ignore empty associated data entries with AES-SIV. The AES-SIV algorithm allows for authentication of multiple associated @@ -20031,6 +20050,7 @@ ndif <!-- Links --> +[CVE-2023-3446]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3446 [CVE-2023-2975]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2975 [RFC 2578 (STD 58), section 3.5]: https://datatracker.ietf.org/doc/html/rfc2578#section-3.5 [CVE-2023-2650]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2650 @@ -39,6 +39,7 @@ OpenSSL 3.1 ### Major changes between OpenSSL 3.1.1 and OpenSSL 3.1.2 [under development] + * Fix DH_check() excessive time with over sized modulus ([CVE-2023-3446]) * Do not ignore empty associated data entries with AES-SIV ([CVE-2023-2975]) * When building with the `enable-fips` option and using the resulting FIPS provider, TLS 1.2 will, by default, mandate the use of an @@ -1480,6 +1481,7 @@ OpenSSL 0.9.x <!-- Links --> +[CVE-2023-3446]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-3446 [CVE-2023-2975]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2975 [CVE-2023-2650]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-2650 [CVE-2023-1255]: https://www.openssl.org/news/vulnerabilities.html#CVE-2023-1255 |