635165fad8
The vulnerabilities listed below were previously fixed by patches
supplied by the OpenSSL project.
Thus, this import is not about vulnerabilities, but about the change
in source style OpenSSL applied before 1.0.1m (as well as small fixes
not listed in the changelog that make us have a 'proper' 1.0.1m).
Upstream Changelog:
Changes between 1.0.1l and 1.0.1m [19 Mar 2015]
*) Segmentation fault in ASN1_TYPE_cmp fix
The function ASN1_TYPE_cmp will crash with an invalid read if an attempt is
made to compare ASN.1 boolean types. Since ASN1_TYPE_cmp is used to check
certificate signature algorithm consistency this can be used to crash any
certificate verification operation and exploited in a DoS attack. Any
application which performs certificate verification is vulnerable including
OpenSSL clients and servers which enable client authentication.
(CVE-2015-0286)
[Stephen Henson]
*) ASN.1 structure reuse memory corruption fix
Reusing a structure in ASN.1 parsing may allow an attacker to cause
memory corruption via an invalid write. Such reuse is and has been
strongly discouraged and is believed to be rare.
Applications that parse structures containing CHOICE or ANY DEFINED BY
components may be affected. Certificate parsing (d2i_X509 and related
functions) are however not affected. OpenSSL clients and servers are
not affected.
(CVE-2015-0287)
[Stephen Henson]
*) PKCS7 NULL pointer dereferences fix
The PKCS#7 parsing code does not handle missing outer ContentInfo
correctly. An attacker can craft malformed ASN.1-encoded PKCS#7 blobs with
missing content and trigger a NULL pointer dereference on parsing.
Applications that verify PKCS#7 signatures, decrypt PKCS#7 data or
otherwise parse PKCS#7 structures from untrusted sources are
affected. OpenSSL clients and servers are not affected.
This issue was reported to OpenSSL by Michal Zalewski (Google).
(CVE-2015-0289)
[Emilia Käsper]
*) DoS via reachable assert in SSLv2 servers fix
A malicious client can trigger an OPENSSL_assert (i.e., an abort) in
servers that both support SSLv2 and enable export cipher suites by sending
a specially crafted SSLv2 CLIENT-MASTER-KEY message.
This issue was discovered by Sean Burford (Google) and Emilia Käsper
(OpenSSL development team).
(CVE-2015-0293)
[Emilia Käsper]
*) Use After Free following d2i_ECPrivatekey error fix
A malformed EC private key file consumed via the d2i_ECPrivateKey function
could cause a use after free condition. This, in turn, could cause a double
free in several private key parsing functions (such as d2i_PrivateKey
or EVP_PKCS82PKEY) and could lead to a DoS attack or memory corruption
for applications that receive EC private keys from untrusted
sources. This scenario is considered rare.
This issue was discovered by the BoringSSL project and fixed in their
commit 517073cd4b.
(CVE-2015-0209)
[Matt Caswell]
*) X509_to_X509_REQ NULL pointer deref fix
The function X509_to_X509_REQ will crash with a NULL pointer dereference if
the certificate key is invalid. This function is rarely used in practice.
This issue was discovered by Brian Carpenter.
(CVE-2015-0288)
[Stephen Henson]
*) Removed the export ciphers from the DEFAULT ciphers
[Kurt Roeckx]
Changes between 1.0.1k and 1.0.1l [15 Jan 2015]
*) Build fixes for the Windows and OpenVMS platforms
[Matt Caswell and Richard Levitte]
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| README | ||
$NetBSD: README,v 1.3 2012/01/28 01:30:42 christos Exp $ Organization of Sources: This directory hierarchy is using an organization that separates crypto source for programs that we have obtained from external third parties (where NetBSD is not the primary maintainer) from the system source. This README file is derived from the README file in src/external. The hierarchy is grouped by license, and then package per license, and is organized as follows: crypto/external/ Makefile Descend into the license sub-directories. <license>/ Per-license sub-directories. Makefile Descend into the package sub-directories. <package>/ Per-package sub-directories. Makefile Build the package. dist/ The third-party source for a given package. bin/ lib/ sbin/ BSD makefiles "reach over" from these into "../dist/". This arrangement allows for packages to be easily disabled or excised as necessary, either on a per-license or per-package basis. The licenses currently used are: bsd BSD (or equivalent) licensed software, possibly with the "advertising clause". cpl Common Public License http://www.opensource.org/licenses/cpl1.0 If a package has components covered by different licenses (for example, GPL2 and the LGPL), use the <license> subdirectory for the more restrictive license. If a package allows the choice of a license to use, we'll generally use the less restrictive license. If in doubt about where a package should be located, please contact <core@NetBSD.org> for advice. Migration Strategy: Eventually src/dist (and associated framework in other base source directories) and src/gnu will be migrated to this hierarchy. Maintenance Strategy: The sources under src/crypto/external/<license>/<package>/dist/ are generally a combination of a published distribution plus changes that we submit to the maintainers and that are not yet published by them. Make sure all changes made to the external sources are submitted to the appropriate maintainer, but only after coordinating with the NetBSD maintainers.