From patchwork Wed Jan 5 13:05:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: virendra thakur X-Patchwork-Id: 2059 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 285C1C433F5 for ; Wed, 5 Jan 2022 13:05:41 +0000 (UTC) Received: from mail-pl1-f180.google.com (mail-pl1-f180.google.com [209.85.214.180]) by mx.groups.io with SMTP id smtpd.web11.6670.1641387927508456516 for ; Wed, 05 Jan 2022 05:05:27 -0800 Authentication-Results: mx.groups.io; dkim=pass header.i=@gmail.com header.s=20210112 header.b=hnOznrA0; spf=pass (domain: gmail.com, ip: 209.85.214.180, mailfrom: thakur.virendra1810@gmail.com) Received: by mail-pl1-f180.google.com with SMTP id z3so29276939plg.8 for ; Wed, 05 Jan 2022 05:05:27 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id; bh=n941pILhSv1WcUvlrQsZXNFghmx4FAWacF4NRhhCf1w=; b=hnOznrA0aEz6OQsGtCa+1OMetgGJpnYHWMTKAzTJudcSex56kcJBJK2bBCCo+W9n6v tzGLBLXZ5bRaWyF4t3F2zXXdZsVZoOdMbV1VrFFBF9QhvjCxiCrsPXjx0yVOr4hJmhtl 8I5AGvFoYSxhNhtwsSnyidif2FI3OKLXHWY8plhXoTay+poMLQOgCMLfSFpCm9fRaUzF egm6Pb6a2q5XKBMUOLgY7oGv1DlB12k1zpp2NmfepqvCnUQg1bMb0SCI49iqVb3yCb3Y vxhE1WgodQodPubB3swAsmT+HLviRuklqRRQQOZmF/1OUx2BTdS7zc4EPQPHQj6FprEY oEHA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=n941pILhSv1WcUvlrQsZXNFghmx4FAWacF4NRhhCf1w=; b=dhpUZAGMwTK6atwCaLYEVwM5YDP5lFUnDdX23YeARXgT7aVjZlKMddSaZOpJiDFJw+ R8SK/5c9JyNVIPgZHrLNlPX6zH5m+W7/cixI8w+/Sk4yXYWlgtAgdxVbJPx51p7Wq/h8 GXciQU1TEPC5GhaGMc8GNaFPlGfgR/HA6vxEpZN1oUGTvFAyQUQ+xPwK6rRnM8cNG3cu GBuD/G0hehRdORYdotlGdM8yYHaxCKhTzsM/Pcp0uQnPFrMkEahtnKSG/k0D75dQPZdN idGQOqz7Ddza5SH3eKNyikURnUTFz9pju40qTK/cXCWUSIVEt/SzaDpkcuRtv/YxbvjJ PYWQ== X-Gm-Message-State: AOAM530YtX35V4YFVsHkuKUr+J+rBo6ZfdtYgOI+yuBqoZNeMfo4hPSm pLIXwDxqEnA2UmEGFrYWShsMZ+rYncZt/saLQQs+GQ== X-Google-Smtp-Source: ABdhPJwOnUye25hdUAknd9mkeYShUZ8uU1SAG3sp7npNd7W9jDlzoMofq8h37O9VTgJJg9C+/vUNpw== X-Received: by 2002:a17:902:650c:b0:149:82bb:1145 with SMTP id b12-20020a170902650c00b0014982bb1145mr40885940plk.3.1641387926782; Wed, 05 Jan 2022 05:05:26 -0800 (PST) Received: from localhost.localdomain ([110.226.88.86]) by smtp.gmail.com with ESMTPSA id b9sm14885882pgb.17.2022.01.05.05.05.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 05 Jan 2022 05:05:26 -0800 (PST) From: virendra thakur To: openembedded-core@lists.openembedded.org, raj.khem@gmail.com Cc: akuster808@gmail.com, Virendra Thakur , Virendra Thakur Subject: [meta-networking][dunfell][PATCH] strongswan: Fix for CVE-2021-41990 and CVE-2021-41991 Date: Wed, 5 Jan 2022 18:35:01 +0530 Message-Id: <20220105130501.5251-1-thakur.virendra1810@gmail.com> X-Mailer: git-send-email 2.17.1 List-Id: X-Webhook-Received: from li982-79.members.linode.com [45.33.32.79] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Wed, 05 Jan 2022 13:05:41 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/160184 From: Virendra Thakur Add patch to fix CVE-2021-41990 and CVE-2021-41991 Signed-off-by: Virendra Thakur --- .../strongswan/files/CVE-2021-41990.patch | 60 +++++++++++++++++++ .../strongswan/files/CVE-2021-41991.patch | 39 ++++++++++++ .../strongswan/strongswan_5.8.4.bb | 2 + 3 files changed, 101 insertions(+) create mode 100644 meta-networking/recipes-support/strongswan/files/CVE-2021-41990.patch create mode 100644 meta-networking/recipes-support/strongswan/files/CVE-2021-41991.patch diff --git a/meta-networking/recipes-support/strongswan/files/CVE-2021-41990.patch b/meta-networking/recipes-support/strongswan/files/CVE-2021-41990.patch new file mode 100644 index 000000000..279a08b67 --- /dev/null +++ b/meta-networking/recipes-support/strongswan/files/CVE-2021-41990.patch @@ -0,0 +1,60 @@ +From 423a5d56274a1d343e0d2107dfc4fbf0df2dcca5 Mon Sep 17 00:00:00 2001 +From: Tobias Brunner +Date: Tue, 28 Sep 2021 17:52:08 +0200 +Subject: [PATCH] Reject RSASSA-PSS params with negative salt length + +The `salt_len` member in the struct is of type `ssize_t` because we use +negative values for special automatic salt lengths when generating +signatures. + +Not checking this could lead to an integer overflow. The value is assigned +to the `len` field of a chunk (`size_t`), which is further used in +calculations to check the padding structure and (if that is passed by a +matching crafted signature value) eventually a memcpy() that will result +in a segmentation fault. + +Fixes: a22316520b91 ("signature-params: Add functions to parse/build ASN.1 RSASSA-PSS params") +Fixes: 7d6b81648b2d ("gmp: Add support for RSASSA-PSS signature verification") +Fixes: CVE-2021-41990 + +Upstream-Status: Backport [https://download.strongswan.org/security/CVE-2021-41990] +Signed-off-by: Virendra Thakur + +--- + src/libstrongswan/credentials/keys/signature_params.c | 6 +++++- + src/libstrongswan/plugins/gmp/gmp_rsa_public_key.c | 2 +- + 2 files changed, 6 insertions(+), 2 deletions(-) + +diff --git a/src/libstrongswan/credentials/keys/signature_params.c b/src/libstrongswan/credentials/keys/signature_params.c +index d89bd2c96bb5..837de8443d43 100644 +--- a/src/libstrongswan/credentials/keys/signature_params.c ++++ b/src/libstrongswan/credentials/keys/signature_params.c +@@ -322,7 +322,11 @@ bool rsa_pss_params_parse(chunk_t asn1, int level0, rsa_pss_params_t *params) + case RSASSA_PSS_PARAMS_SALT_LEN: + if (object.len) + { +- params->salt_len = (size_t)asn1_parse_integer_uint64(object); ++ params->salt_len = (ssize_t)asn1_parse_integer_uint64(object); ++ if (params->salt_len < 0) ++ { ++ goto end; ++ } + } + break; + case RSASSA_PSS_PARAMS_TRAILER: +diff --git a/src/libstrongswan/plugins/gmp/gmp_rsa_public_key.c b/src/libstrongswan/plugins/gmp/gmp_rsa_public_key.c +index f9bd1d314dec..3a775090883e 100644 +--- a/src/libstrongswan/plugins/gmp/gmp_rsa_public_key.c ++++ b/src/libstrongswan/plugins/gmp/gmp_rsa_public_key.c +@@ -168,7 +168,7 @@ static bool verify_emsa_pss_signature(private_gmp_rsa_public_key_t *this, + int i; + bool success = FALSE; + +- if (!params) ++ if (!params || params->salt_len < 0) + { + return FALSE; + } +-- +2.25.1 + diff --git a/meta-networking/recipes-support/strongswan/files/CVE-2021-41991.patch b/meta-networking/recipes-support/strongswan/files/CVE-2021-41991.patch new file mode 100644 index 000000000..0e5bce2bd --- /dev/null +++ b/meta-networking/recipes-support/strongswan/files/CVE-2021-41991.patch @@ -0,0 +1,39 @@ +From b667237b3a84f601ef5a707ce8eb861c3a5002d3 Mon Sep 17 00:00:00 2001 +From: Tobias Brunner +Date: Tue, 28 Sep 2021 19:38:22 +0200 +Subject: [PATCH] cert-cache: Prevent crash due to integer overflow/sign change + +random() allocates values in the range [0, RAND_MAX], with RAND_MAX usually +equaling INT_MAX = 2^31-1. Previously, values between 0 and 31 were added +directly to that offset before applying`% CACHE_SIZE` to get an index into +the cache array. If the random value was very high, this resulted in an +integer overflow and a negative index value and, therefore, an out-of-bounds +access of the array and in turn dereferencing invalid pointers when trying +to acquire the read lock. This most likely results in a segmentation fault. + +Fixes: 764e8b2211ce ("reimplemented certificate cache") +Fixes: CVE-2021-41991 + +Upstream-Status: Backport [https://download.strongswan.org/security/CVE-2021-41991] +Signed-off-by: Virendra Thakur + +--- + src/libstrongswan/credentials/sets/cert_cache.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/src/libstrongswan/credentials/sets/cert_cache.c b/src/libstrongswan/credentials/sets/cert_cache.c +index f1579c60a9bc..ceebb3843725 100644 +--- a/src/libstrongswan/credentials/sets/cert_cache.c ++++ b/src/libstrongswan/credentials/sets/cert_cache.c +@@ -151,7 +151,7 @@ static void cache(private_cert_cache_t *this, + for (try = 0; try < REPLACE_TRIES; try++) + { + /* replace a random relation */ +- offset = random(); ++ offset = random() % CACHE_SIZE; + for (i = 0; i < CACHE_SIZE; i++) + { + rel = &this->relations[(i + offset) % CACHE_SIZE]; +-- +2.25.1 + diff --git a/meta-networking/recipes-support/strongswan/strongswan_5.8.4.bb b/meta-networking/recipes-support/strongswan/strongswan_5.8.4.bb index 8a8809243..b45b8074c 100644 --- a/meta-networking/recipes-support/strongswan/strongswan_5.8.4.bb +++ b/meta-networking/recipes-support/strongswan/strongswan_5.8.4.bb @@ -11,6 +11,8 @@ SRC_URI = "http://download.strongswan.org/strongswan-${PV}.tar.bz2 \ file://fix-funtion-parameter.patch \ file://0001-memory.h-Include-stdint.h-for-uintptr_t.patch \ file://0001-Remove-obsolete-setting-regarding-the-Standard-Outpu.patch \ + file://CVE-2021-41990.patch \ + file://CVE-2021-41991.patch \ " SRC_URI[md5sum] = "0634e7f40591bd3f6770e583c3f27d29"