- Nov 10, 2016
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Richard Levitte authored
The offset to the memory to clear was incorrect, causing a heap buffer overflow. CVE-2016-7054 Thanks to Robert Święcki for reporting this Reviewed-by:Rich Salz <rsalz@openssl.org> (cherry picked from commit b8e4011fb26364e44230946b87ab38cc1c719aae)
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Andy Polyakov authored
Some of stone-age assembler can't cope with r0 in address. It's actually sensible thing to do, because r0 is shunted to 0 in address arithmetic and by refusing r0 assembler effectively makes you understand that. Reviewed-by:
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Andy Polyakov authored
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Andy Polyakov authored
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Richard Levitte authored
Skip the test if the value after ":" is a disabled algorithm, rather than failing it Reviewed-by:
Matt Caswell <matt@openssl.org> (cherry picked from commit dfbdf4ab)
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Richard Levitte authored
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- Nov 09, 2016
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EasySec authored
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Richard Levitte <levitte@openssl.org> Reviewed-by:
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Richard Levitte authored
For consistency, it's better to use the perl that was specified to Configure last time it was called. Use case: perl v5.8.8 was first along $PATH, perl v5.22.2 was available and specified as: PERL=/opt/local/bin/perl ./config. When make wanted to reconfigure and called './Configure reconf', configuration broke down, complaining about a perl that's too old. Reviewed-by:
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- Nov 08, 2016
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FdaSilvaYY authored
BN_RECP_CTX_new direclty use bn_init to avoid twice memset calls Reviewed-by:
Kurt Roeckx <kurt@openssl.org> Reviewed-by:
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Rich Salz authored
Thanks to Falko Strenzke for bringing this to our attention. Reviewed-by:
Andy Polyakov <appro@openssl.org> (Merged from https://github.com/openssl/openssl/pull/1882) (cherry picked from commit e5e71f28)
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Richard Levitte authored
libssl, not libddl. Reviewed-by:
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- Nov 07, 2016
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FdaSilvaYY authored
and fix documentation. Reviewed-by:
Tim Hudson <tjh@openssl.org> Reviewed-by:
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Andrea Grandi authored
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Kurt Roeckx <kurt@roeckx.be> Reviewed-by:
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David Benjamin authored
MD5/SHA1 and MDC-2 have special-case logic beyond the generic DigestInfo wrapping. Test that each of these works, including hash and length mismatches (both input and signature). Also add VerifyRecover tests. It appears 5824cc29 added support for VerifyRecover, but forgot to add the test data. Reviewed-by:
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David Benjamin authored
PKCS #1 v2.0 is the name of a document which specifies an algorithm RSASSA-PKCS1-v1_5, often referred to as "PKCS #1 v1.5" after an earlier document which specified it. This gets further confusing because the document PKCS #1 v2.1 specifies two signature algorithms, RSASSA-PKCS1-v1_5 and RSASSA-PSS. RSA_sign implements RSASSA-PKCS1-v1_5. Refer to the document using the RFC number which is easier to find anyway, and refer to the algorithm by its name. Reviewed-by:
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David Benjamin authored
RFC 3447, section 8.2.2, steps 3 and 4 states that verifiers must encode the DigestInfo struct and then compare the result against the public key operation result. This implies that one and only one encoding is legal. OpenSSL instead parses with crypto/asn1, then checks that the encoding round-trips, and allows some variations for the parameter. Sufficient laxness in this area can allow signature forgeries, as described in https://www.imperialviolet.org/2014/09/26/pkcs1.html Although there aren't known attacks against OpenSSL's current scheme, this change makes OpenSSL implement the algorithm as specified. This avoids the uncertainty and, more importantly, helps grow a healthy ecosystem. Laxness beyond the spec, particularly in implementations which enjoy wide use, risks harm to the ecosystem for all. A signature producer which only tests against OpenSSL may not notice bugs and accidentally become widely deployed. Thus implementations have a responsibility to honor the specification as tightly as is practical. In some cases, the damage is permanent and the spec deviation and security risk becomes a tax all implementors must forever pay, but not here. Both BoringSSL and Go successfully implemented and deployed RSASSA-PKCS1-v1_5 as specified since their respective beginnings, so this change should be compatible enough to pin down in future OpenSSL releases. See also https://tools.ietf.org/html/draft-thomson-postel-was-wrong-00 As a bonus, by not having to deal with sign/verify differences, this version is also somewhat clearer. It also more consistently enforces digest lengths in the verify_recover codepath. The NID_md5_sha1 codepath wasn't quite doing this right. Reviewed-by:
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Matt Caswell authored
This partially reverts commit c636c1c4 . It also tweaks the documentation and comments in this area. On the client side the documented interface for SSL_CTX_set_verify()/SSL_set_verify() is that setting the flag SSL_VERIFY_PEER causes verfication of the server certificate to take place. Previously what was implemented was that if *any* flag was set then verification would take place. The above commit improved the semantics to be as per the documented interface. However, we have had a report of at least one application where an application was incorrectly using the interface and used *only* SSL_VERIFY_FAIL_IF_NO_PEER_CERT on the client side. In OpenSSL prior to the above commit this still caused verification of the server certificate to take place. After this commit the application silently failed to verify the server certificate. Ideally SSL_CTX_set_verify()/SSL_set_verify() could be modified to indicate if invalid flags were being used. However these are void functions! The simplest short term solution is to revert to the previous behaviour which at least means we "fail closed" rather than "fail open". Thanks to Cory Benfield for reporting this issue. Reviewed-by:
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Matt Caswell authored
We read it later in grow_init_buf(). If CCS is the first thing received in a flight, then it will use the init_msg from the last flight we received. If the init_buf has been grown in the meantime then it will point to some arbitrary other memory location. This is likely to result in grow_init_buf() attempting to grow to some excessively large amount which is likely to fail. In practice this should never happen because the only time we receive a CCS as the first thing in a flight is in an abbreviated handshake. None of the preceding messages from the server flight would be large enough to trigger this. Reviewed-by:
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- Nov 06, 2016
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Richard Levitte authored
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Richard Levitte authored
If zlib-dynamic was given but not --with-zlib-lib, LIBZ was defined to the empty string. Instead, give it the default "ZLIB1". Reviewed-by:
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Richard Levitte authored
VMS only unloads shared libraries at process rundown, so tell the OpenSSL code so by pretending we linked with -znodelete. Reviewed-by:
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- Nov 04, 2016
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Richard Levitte authored
Since the local symbol table is looked up before the global symbol table, 'arch' assigned in the local symbol table of the DCL where MMS is called would be seen before the 'arch' defined in descrip.mms. Assigning it to the local symbol table in descrip.mms removes that issue. Reviewed-by:
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Rich Salz authored
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Richard Levitte authored
Clang on Linux seems to catch things that we might miss otherwise. Also, throw in 'no-deprecated' to make sure we test that as well. Reviewed-by:
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- Nov 03, 2016
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Richard Levitte authored
test/shlibloadtest.c assumes all Unix style platforms use .so as shared library extension. This is not the case for Mac OS X, which uses .dylib. Instead of this, have the test recipe find out the extension from configuration data. Reviewed-by:
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Rich Salz authored
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Richard Levitte authored
Pre 1.1.0, 'make test' would set the environment variable OPENSSL_DEBUG_MEMORY to "on". This got lost when translating the old build files to the new templates. This changes reintroduces that variable. Reviewed-by:
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Richard Levitte authored
- Make sure to initialise SHLIB variables - Make sure to make local variables static Reviewed-by:
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Richard Levitte authored
gcc is kinder, it silently passes quite a few flags to ld, while clang is stricter and wants them prefixed with -Wl, Reviewed-by:
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Richard Levitte authored
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Kurt Roeckx authored
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Mike Aizatsky authored
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- Nov 02, 2016
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Matt Caswell authored
Rather than leaking a reference, just call GetModuleHandleEx and pin the module on Windows. Reviewed-by:
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Matt Caswell authored
Instead of deliberately leaking a reference to ourselves, use nodelete which does this more neatly. Only for Linux at the moment. Reviewed-by:
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Matt Caswell authored
This should demonstrate that the atexit() handling is working properly (or at least not crashing) on process exit. Reviewed-by:
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Matt Caswell authored
Because we use atexit() to cleanup after ourselves, this will cause a problem if we have been dynamically loaded and then unloaded again: the atexit() handler may no longer be there. Most modern atexit() implementations can handle this, however there are still difficulties if libssl gets unloaded before libcrypto, because of the atexit() callback that libcrypto makes to libssl. The most robust solution seems to be to ensure that libcrypto and libssl never unload. This is done by simply deliberately leaking a dlopen() reference to them. Reviewed-by:
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Matt Caswell authored
This works the same way as DSO_pathbyaddr() but instead returns a ptr to the DSO that contains the provided symbol. Reviewed-by:
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Matt Caswell authored
Commit 3d8b2ec4 removed various unused functions. However now we need to use one of them! This commit resurrects DSO_pathbyaddr(). We're not going to resurrect the Windows version though because what we need to achieve can be done a different way on Windows. Reviewed-by:
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Matt Caswell authored
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Matt Caswell authored
We should fail if we receive an unrecognised record type Reviewed-by:
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