From patchwork Mon Apr 10 19:52:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Felix Lechner X-Patchwork-Id: 49064 Return-Path: X-Original-To: patchwork@mira.cbaines.net Delivered-To: patchwork@mira.cbaines.net Received: by mira.cbaines.net (Postfix, from userid 113) id A8C071748D; Mon, 10 Apr 2023 20:53:32 +0100 (BST) X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on mira.cbaines.net X-Spam-Level: X-Spam-Status: No, score=-3.7 required=5.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS, URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.6 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mira.cbaines.net (Postfix) with ESMTPS id 338D417421 for ; Mon, 10 Apr 2023 20:53:30 +0100 (BST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1plxZb-0000yc-0q; Mon, 10 Apr 2023 15:53:07 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1plxZX-0000xi-6K for guix-patches@gnu.org; Mon, 10 Apr 2023 15:53:05 -0400 Received: from debbugs.gnu.org ([209.51.188.43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1plxZW-0006gd-Us for guix-patches@gnu.org; Mon, 10 Apr 2023 15:53:02 -0400 Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1plxZW-0003OH-KQ for guix-patches@gnu.org; Mon, 10 Apr 2023 15:53:02 -0400 X-Loop: help-debbugs@gnu.org Subject: [bug#62760] [PATCH 2/3] gnu: heimdal: Patch for CVE-2022-45142. Resent-From: Felix Lechner Original-Sender: "Debbugs-submit" Resent-CC: guix-patches@gnu.org Resent-Date: Mon, 10 Apr 2023 19:53:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 62760 X-GNU-PR-Package: guix-patches X-GNU-PR-Keywords: patch To: 62760@debbugs.gnu.org Cc: Felix Lechner Received: via spool by 62760-submit@debbugs.gnu.org id=B62760.168115635912986 (code B ref 62760); Mon, 10 Apr 2023 19:53:02 +0000 Received: (at 62760) by debbugs.gnu.org; 10 Apr 2023 19:52:39 +0000 Received: from localhost ([127.0.0.1]:35996 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1plxZ8-0003NG-P2 for submit@debbugs.gnu.org; Mon, 10 Apr 2023 15:52:39 -0400 Received: from sail-ipv4.us-core.com ([208.82.101.137]:39340) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1plxZ7-0003Mu-Gp for 62760@debbugs.gnu.org; Mon, 10 Apr 2023 15:52:38 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; s=2017; bh=IJzA+eLCekX8Gmm Q09HQLZA4Z+ETmJXOnK/Z9HX5t9Q=; h=references:in-reply-to:date:subject: cc:to:from; d=lease-up.com; b=JwpRWHLX+wHQoHDTLkANE1OBMzaNeCP4DkuxcpDc /Jc3uJEJYNNz+IjrfkENL54C1+Pwg1C5Z/r+jeBlRsWGqElzEp15OqDC/ZSIQhTxAR1hIX FfNrZhEJZxPyI7SHyf6aCocLevZIV/qcuCbk56HNxReN9cIZcCKZxOwY6r9RA= Received: by sail-ipv4.us-core.com (OpenSMTPD) with ESMTPSA id 6f3ae34e (TLSv1.3:TLS_CHACHA20_POLY1305_SHA256:256:NO); Mon, 10 Apr 2023 19:52:36 +0000 (UTC) Received: from localhost (localhost [local]) by localhost (OpenSMTPD) with ESMTPA id 9eca8e9e; Mon, 10 Apr 2023 19:52:36 +0000 (UTC) Date: Mon, 10 Apr 2023 12:52:25 -0700 Message-Id: <52829030c170d0be6e11efdc69fddaa88f290ea9.1681155077.git.felix.lechner@lease-up.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-BeenThere: guix-patches@gnu.org List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Felix Lechner X-ACL-Warn: , Felix Lechner via Guix-patches X-Patchwork-Original-From: Felix Lechner via Guix-patches via From: Felix Lechner Errors-To: guix-patches-bounces+patchwork=mira.cbaines.net@gnu.org Sender: guix-patches-bounces+patchwork=mira.cbaines.net@gnu.org X-getmail-retrieved-from-mailbox: Patches Several recent Heimdal releases are affected by the serious vulnerability CVE-2022-45142, which NIST scored as "7.5 HIGH". [1] At the time of writing, the upstream developers had not yet cut any releases post-7.8.0, which is why the patch is being applied here. The patch was extracted from Helmut Grohne's public vulnerability disclosure. [2] [1] https://nvd.nist.gov/vuln/detail/CVE-2022-45142 [2] https://www.openwall.com/lists/oss-security/2023/02/08/1 * gnu/packages/kerberos.scm (heimdal)[patches]: Add patch for CVE-2022-45142. --- gnu/packages/kerberos.scm | 2 + .../patches/heimdal-CVE-2022-45142.patch | 49 +++++++++++++++++++ 2 files changed, 51 insertions(+) create mode 100644 gnu/packages/patches/heimdal-CVE-2022-45142.patch diff --git a/gnu/packages/kerberos.scm b/gnu/packages/kerberos.scm index ae4efcbc23..0faf879e35 100644 --- a/gnu/packages/kerberos.scm +++ b/gnu/packages/kerberos.scm @@ -176,6 +176,8 @@ (define-public heimdal (sha256 (base32 "0f4dblav859p5hn7b2jdj1akw6d8p32as6bj6zym19kghh3s51zx")) + (patches (search-patches + "heimdal-CVE-2022-45142.patch")) (modules '((guix build utils))) (snippet '(begin diff --git a/gnu/packages/patches/heimdal-CVE-2022-45142.patch b/gnu/packages/patches/heimdal-CVE-2022-45142.patch new file mode 100644 index 0000000000..a7258a937c --- /dev/null +++ b/gnu/packages/patches/heimdal-CVE-2022-45142.patch @@ -0,0 +1,49 @@ +From: Helmut Grohne +Subject: [PATCH v3] CVE-2022-45142: gsskrb5: fix accidental logic inversions + +The referenced commit attempted to fix miscompilations with gcc-9 and +gcc-10 by changing `memcmp(...)` to `memcmp(...) != 0`. Unfortunately, +it also inverted the result of the comparison in two occasions. This +inversion happened during backporting the patch to 7.7.1 and 7.8.0. + +Fixes: f6edaafcfefd ("gsskrb5: CVE-2022-3437 Use constant-time memcmp() + for arcfour unwrap") +Signed-off-by: Helmut Grohne +--- + lib/gssapi/krb5/arcfour.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +Changes since v1: + * Fix typo in commit message. + * Mention 7.8.0 in commit message. Thanks to Jeffrey Altman. + +Changes since v2: + * Add CVE identifier. + +NB (Felix Lechner): The message above and the patch below were taken from the +disclosure here: https://www.openwall.com/lists/oss-security/2023/02/08/1 + +diff --git a/lib/gssapi/krb5/arcfour.c b/lib/gssapi/krb5/arcfour.c +index e838d007a..eee6ad72f 100644 +--- a/lib/gssapi/krb5/arcfour.c ++++ b/lib/gssapi/krb5/arcfour.c +@@ -365,7 +365,7 @@ _gssapi_verify_mic_arcfour(OM_uint32 * minor_status, + return GSS_S_FAILURE; + } + +- cmp = (ct_memcmp(cksum_data, p + 8, 8) == 0); ++ cmp = (ct_memcmp(cksum_data, p + 8, 8) != 0); + if (cmp) { + *minor_status = 0; + return GSS_S_BAD_MIC; +@@ -730,7 +730,7 @@ OM_uint32 _gssapi_unwrap_arcfour(OM_uint32 *minor_status, + return GSS_S_FAILURE; + } + +- cmp = (ct_memcmp(cksum_data, p0 + 16, 8) == 0); /* SGN_CKSUM */ ++ cmp = (ct_memcmp(cksum_data, p0 + 16, 8) != 0); /* SGN_CKSUM */ + if (cmp) { + _gsskrb5_release_buffer(minor_status, output_message_buffer); + *minor_status = 0; +-- +2.38.1