Headline
CVE-2017-3735
While parsing an IPAddressFamily extension in an X.509 certificate, it is possible to do a one-byte overread. This would result in an incorrect text display of the certificate. This bug has been present since 2006 and is present in all versions of OpenSSL before 1.0.2m and 1.1.0g.
OpenSSL Security Advisory [28 Aug 2017] ======================================== Malformed X.509 IPAddressFamily could cause OOB read (CVE-2017-3735) =================================================================== Severity: Low If an X.509 certificate has a malformed IPAddressFamily extension, OpenSSL could do a one-byte buffer overread. The most likely result would be an erroneous display of the certificate in text format. This bug has been present since 2006. OpenSSL 1.1.0 users should upgrade to 1.1.0g OpenSSL 1.0.2 users should upgrade to 1.0.2m This issue was found by Google’s OSS-Fuzz project on August 22. The fix was developed by Rich Salz of the OpenSSL development team. UPDATE 02 November 2017: At the time of the original security advisory the fix was only available in the development versions. The advisory has now been updated with the release information. Note ==== Support for version 1.0.1 ended on 31st December 2016. Support for versions 0.9.8 and 1.0.0 ended on 31st December 2015. Those versions are no longer receiving security updates. References ========== URL for this Security Advisory: https://www.openssl.org/news/secadv/20170828.txt Note: the online version of the advisory may be updated with additional details over time. For details of OpenSSL severity classifications please see: https://www.openssl.org/policies/secpolicy.html
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