Date: Wed, 11 Jan 2017 11:42:37 +0000 (UTC) From: Bernard Spil <brnrd@FreeBSD.org> To: ports-committers@freebsd.org, svn-ports-all@freebsd.org, svn-ports-head@freebsd.org Subject: svn commit: r431174 - in head/security/libressl: . files Message-ID: <201701111142.v0BBgb8j042283@repo.freebsd.org>
next in thread | raw e-mail | index | archive | help
Author: brnrd Date: Wed Jan 11 11:42:37 2017 New Revision: 431174 URL: https://svnweb.freebsd.org/changeset/ports/431174 Log: security/libressl: Fix ECDSA P-256 timing attack vuln - Add patch from OpenBSD MFH: 2017Q1 Security: 7caebe30-d7f1-11e6-a9a5-b499baebfeaf Security: CVE-2016-7056 Added: head/security/libressl/files/patch-CVE-2016-7056 (contents, props changed) Modified: head/security/libressl/Makefile Modified: head/security/libressl/Makefile ============================================================================== --- head/security/libressl/Makefile Wed Jan 11 11:41:08 2017 (r431173) +++ head/security/libressl/Makefile Wed Jan 11 11:42:37 2017 (r431174) @@ -3,6 +3,7 @@ PORTNAME= libressl PORTVERSION= 2.4.4 +PORTREVISION= 1 CATEGORIES= security devel MASTER_SITES= OPENBSD/LibreSSL Added: head/security/libressl/files/patch-CVE-2016-7056 ============================================================================== --- /dev/null 00:00:00 1970 (empty, because file is newly added) +++ head/security/libressl/files/patch-CVE-2016-7056 Wed Jan 11 11:42:37 2017 (r431174) @@ -0,0 +1,35 @@ +untrusted comment: signature from openbsd 6.0 base secret key +RWSho3oKSqgLQ55BCxFoKK3pckJBYNZ3l6vujvan4SYLtXvRIsH6PNnmu7Xu18ILyYPxIQnYmCf1ux+IeoD8vzKfEeoCb+UVdQg= + +OpenBSD 6.0 errata 16, Jan 5, 2017: + +Avoid possible side-channel leak of ECDSA private keys when signing. + +Apply by doing: + signify -Vep /etc/signify/openbsd-60-base.pub -x 016_libcrypto.patch.sig \ + -m - | (cd /usr/src && patch -p0) + +And then rebuild and install libcrypto: + cd /usr/src/lib/libcrypto + make obj + make depend + make + make install + +Index: lib/libssl/src/crypto/ecdsa/ecs_ossl.c +=================================================================== +RCS file: /cvs/src/lib/libssl/src/crypto/ecdsa/Attic/ecs_ossl.c,v +retrieving revision 1.6 +retrieving revision 1.6.8.1 +diff -u -p -r1.6 -r1.6.8.1 +--- crypto/ecdsa/ecs_ossl.c 8 Feb 2015 13:35:07 -0000 1.6 ++++ crypto/ecdsa/ecs_ossl.c 5 Jan 2017 13:28:48 -0000 1.6.8.1 +@@ -141,6 +141,8 @@ ecdsa_sign_setup(EC_KEY *eckey, BN_CTX * + if (BN_num_bits(k) <= BN_num_bits(order)) + if (!BN_add(k, k, order)) + goto err; ++ ++ BN_set_flags(k, BN_FLG_CONSTTIME); + + /* compute r the x-coordinate of generator * k */ + if (!EC_POINT_mul(group, tmp_point, k, NULL, NULL, ctx)) {
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201701111142.v0BBgb8j042283>