- 02 Nov, 2017 4 commits
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Matt Caswell authored
Reviewed-by:Andy Polyakov <appro@openssl.org>
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Matt Caswell authored
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Matt Caswell authored
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Andy Polyakov authored
Credit to OSS-Fuzz for finding this. CVE-2017-3736 Reviewed-by:Rich Salz <rsalz@openssl.org>
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- 01 Nov, 2017 3 commits
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Pauli authored
information about the length of the scalar used in ECDSA operations from a large number (2^32) of signatures. Thanks to Neals Fournaise, Eliane Jaulmes and Jean-Rene Reinhard for reporting this issue. Refer to #4576 for further details. Reviewed-by:
Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/4623)
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Pauli authored
information about the length of a value used in DSA operations from a large number of signatures. This doesn't rate as a CVE because: * For the non-constant time code, there are easier ways to extract more information. * For the constant time code, it requires a significant number of signatures to leak a small amount of information. Thanks to Neals Fournaise, Eliane Jaulmes and Jean-Rene Reinhard for reporting this issue. Original commit by Paul Dale. Backported to 1.0.2 by Matt Caswell Reviewed-by:
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David Benjamin authored
1ce95f19 was incomplete and did not handle the case when SSL_set_SSL_CTX was called from the cert_cb callback rather than the SNI callback. The consequence is any server using OpenSSL 1.0.2 and the cert_cb callback for SNI only ever signs a weak digest, SHA-1, even when connecting to clients which use secure ones. Fix this and add regression tests for both this and the original issue. Fixes #4554. Reviewed-by:
Emilia Käsper <emilia@openssl.org> Reviewed-by:
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- 26 Oct, 2017 2 commits
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Richard Levitte authored
Fixes: #2539 Reviewed-by:
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Matt Caswell authored
The functions strcasecmp() and strncasecmp() will use locale specific rules when performing comparison. This could cause some problems in certain locales. For example in the Turkish locale an 'I' character is not the uppercase version of 'i'. However IA5 strings should not use locale specific rules, i.e. for an IA5 string 'I' is uppercase 'i' even if using the Turkish locale. This fixes a bug in name constraints checking reported by Thomas Pornin (NCCGroup). This is not considered a security issue because it would require both a Turkish locale (or other locale with similar issues) and malfeasance by a trusted name-constrained CA for a certificate to pass name constraints in error. The constraints also have to be for excluded sub-trees which are extremely rare. Failure to match permitted subtrees is a bug, not a vulnerability. Reviewed-by:
Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/4570)
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- 25 Oct, 2017 1 commit
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Matt Caswell authored
The lhash expand() function can fail if realloc fails. The previous implementation made changes to the structure and then attempted to do a realloc. If the realloc failed then it attempted to undo the changes it had just made. Unfortunately changes to lh->p were not undone correctly, ultimately causing subsequent expand() calls to increment num_nodes to a value higher than num_alloc_nodes, which can cause out-of-bounds reads/ writes. This is not considered a security issue because an attacker cannot cause realloc to fail. This commit moves the realloc call to near the beginning of the function before any other changes are made to the lhash structure. That way if a failure occurs we can immediately fail without having to undo anything. Thanks to Pavel Kopyl (Samsung) for reporting this issue. Reviewed-by:
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- 24 Oct, 2017 2 commits
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Richard Levitte authored
The previous change with this intention didn't quite do it. An embedded item must not be freed itself, but might potentially contain non-embedded elements, which must be freed. So instead of calling ASN1_item_ex_free(), where we can't pass the combine flag, we call asn1_item_embed_free() directly. This changes asn1_item_embed_free() from being a static function to being a private non-static function. Reviewed-by:
Bernd Edlinger <bernd.edlinger@hotmail.de> (Merged from https://github.com/openssl/openssl/pull/4578)
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Xiangyu Bu authored
CLA: trivial Reviewed-by:
Tim Hudson <tjh@openssl.org> Reviewed-by:
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- 23 Oct, 2017 1 commit
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Richard Levitte authored
An embedded item wasn't allocated separately on the heap, so don't free it as if it was. Issue discovered by Pavel Kopyl Reviewed-by:
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- 19 Oct, 2017 1 commit
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Rich Salz authored
Add openssl-foo as a name for the openssl "foo" command. Recommended by a usability study conducted by Martin Ukrop at CRoCS, FI MU Fixes: #4548 Reviewed-by:
Paul Dale <paul.dale@oracle.com> (Merged from https://github.com/openssl/openssl/pull/4557)
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- 13 Oct, 2017 1 commit
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Rich Salz authored
Thanks to Jo Hornsby for reporting this and helping with the fix. Reviewed-by:
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- 11 Oct, 2017 1 commit
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Matt Caswell authored
RSA_setup_blinding() calls BN_BLINDING_create_param() which later calls BN_mod_exp() as follows: BN_mod_exp(ret->A, ret->A, ret->e, ret->mod, ctx) ret->mod will have BN_FLG_CONSTTIME set, but ret->e does not. In BN_mod_exp() we only test the third param for the existence of this flag. We should test all the inputs. Thanks to Samuel Weiser (samuel.weiser@iaik.tugraz.at) for reporting this issue. This typically only happens once at key load, so this is unlikely to be exploitable in any real scenario. Reviewed-by:
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- 03 Oct, 2017 4 commits
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Dr. Stephen Henson authored
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Paul Yang authored
Reviewed-by:
Ben Kaduk <kaduk@mit.edu> Reviewed-by:
Stephen Henson <steve@openssl.org> (Merged from https://github.com/openssl/openssl/pull/4453)
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Dr. Stephen Henson authored
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Dr. Stephen Henson authored
Functions to retrieve the function pointer of an existing method: this can be used to create a method which intercepts or modifies the behaviour of an existing method while retaining most of the existing behaviour. Reviewed-by:
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- 02 Oct, 2017 1 commit
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Bernd Edlinger authored
Change argument type of xxxelem_is_zero_int to const void* to avoid the need of type casts. Fixes #4413 Reviewed-by:
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- 29 Sep, 2017 3 commits
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Samuel Weiser authored
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Hubert Kario authored
BN_new() and BN_secure_new() not only allocate memory, but also initialise it to deterministic value - 0. Document that behaviour to make it explicit backport from #4438 Reviewed-by:
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Hubert Kario authored
document that parameter to BN_free can be NULL backport from master Reviewed-by:
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- 27 Sep, 2017 2 commits
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Samuel Weiser authored
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Samuel Weiser authored
Fixed error in propagating BN_FLG_CONSTTIME flag through BN_MONT_CTX_set, which could lead to information disclosure on RSA primes p and q. Reviewed-by:
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- 26 Sep, 2017 1 commit
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Richard Levitte authored
Fixes #4419 Reviewed-by:
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- 19 Sep, 2017 1 commit
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David Benjamin authored
c2i_ASN1_BIT_STRING takes length as a long but uses it as an int. Check bounds before doing so. Previously, excessively large inputs to the function could write a single byte outside the target buffer. (This is unreachable as asn1_ex_c2i already uses int for the length.) Thanks to NCC for finding this issue. Fix written by Martin Kreichgauer. Reviewed-by:
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- 11 Sep, 2017 1 commit
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multics authored
Fixes the typo CLA: trivial Reviewed-by:
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- 07 Sep, 2017 1 commit
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Rich Salz authored
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- 28 Aug, 2017 1 commit
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Rich Salz authored
Fixes CVE 2017-3735 Reviewed-by:
Kurt Roeckx <kurt@roeckx.be> (Merged from https://github.com/openssl/openssl/pull/4276) (cherry picked from commit b2317174)
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- 25 Aug, 2017 1 commit
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Matt Caswell authored
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- 24 Aug, 2017 1 commit
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Rich Salz authored
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- 23 Aug, 2017 2 commits
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Dr. Stephen Henson authored
Fix GCM documentation: the tag does not have to be supplied before decrypting any data any more. Reviewed-by:
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Rich Salz authored
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- 22 Aug, 2017 1 commit
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Pauli authored
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- 18 Aug, 2017 3 commits
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Dr. Stephen Henson authored
Fixes #4180 Reviewed-by:
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David von Oheimb authored
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Andy Polyakov authored
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- 17 Aug, 2017 1 commit
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Bernd Edlinger authored
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