CVE-2015-0290
First published: Mon Mar 16 2015(Updated: )
OpenSSL 1.0.2 introduced the "multiblock" performance improvement. This feature only applies on 64-bit x86 architecture platforms that support AES NI instructions. A defect in the implementation of "multiblock" can cause OpenSSL's internal write buffer to become incorrectly set to NULL when using non-blocking I/O. Typically, when the user application is using a socket BIO for writing, this will only result in a failed connection. However if some other BIO is used, then it is likely that a segmentation fault will be triggered, thus enabling a potential denial of service attack. This issue affects OpenSSL version 1.0.2, and is fixed in version 1.0.2a. Acknowledgements: Red Hat would like to thank the OpenSSL project for reporting this issue. Upstream acknowledges Daniel Danner and Rainer Mueller as the original reporters.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| OpenSSL OpenSSL | =1.0.2 | |
| OpenSSL OpenSSL | =1.0.2-beta1 | |
| OpenSSL OpenSSL | =1.0.2-beta2 | |
| OpenSSL OpenSSL | =1.0.2-beta3 | |
| redhat/openssl | <1.0.2 | 1.0.2 |
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Reference Links
- http://marc.info/?l=bugtraq&m=143748090628601&w=2
- http://marc.info/?l=bugtraq&m=144050155601375&w=2
- http://marc.info/?l=bugtraq&m=144050297101809&w=2
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
- http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html
- http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
- http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
- http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
- http://www.securityfocus.com/bid/73226
- http://www.securitytracker.com/id/1031929
- https://bto.bluecoat.com/security-advisory/sa92
- https://bugzilla.redhat.com/show_bug.cgi?id=1202345
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- https://git.openssl.org/?p=openssl.git;a=commit;h=77c77f0a1b9f15b869ca3342186dfbedd1119d0e
- https://kc.mcafee.com/corporate/index?page=content&id=SB10110
- https://security.gentoo.org/glsa/201503-11
- https://www.openssl.org/news/secadv_20150319.txt
- https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=95783193
- https://openssl.org/news/secadv_20150319.txt
- https://access.redhat.com/articles/1384453
- https://git.openssl.org/?p=openssl.git;a=commitdiff;h=77c77f0a1b9f15b869ca3342186dfbedd1119d0e
- https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=77c77f0a1b9f15b869ca3342186dfbedd1119d0e
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