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Thu, 07 Jan 2016 15:04:09 -0800 (PST) From: Armin Kuster To: openembedded-core@lists.openembedded.org Date: Thu, 7 Jan 2016 15:04:03 -0800 Message-Id: <1452207843-29858-3-git-send-email-akuster808@gmail.com> X-Mailer: git-send-email 2.3.5 In-Reply-To: <1452207843-29858-1-git-send-email-akuster808@gmail.com> References: <1452207843-29858-1-git-send-email-akuster808@gmail.com> Cc: Armin Kuster Subject: [PATCH][V2][Jethro, fido 3/3] openssl: fix for CVE-2015-3195 X-BeenThere: openembedded-core@lists.openembedded.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Patches and discussions about the oe-core layer List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 07 Jan 2016 23:04:11 -0000 From: Armin Kuster Signed-off-by: Armin Kuster --- ...CVE-2015-3195-Fix-leak-with-ASN.1-combine.patch | 66 ++++++++++++++++++++++ .../recipes-connectivity/openssl/openssl_1.0.2d.bb | 1 + 2 files changed, 67 insertions(+) create mode 100644 meta/recipes-connectivity/openssl/openssl/CVE-2015-3195-Fix-leak-with-ASN.1-combine.patch diff --git a/meta/recipes-connectivity/openssl/openssl/CVE-2015-3195-Fix-leak-with-ASN.1-combine.patch b/meta/recipes-connectivity/openssl/openssl/CVE-2015-3195-Fix-leak-with-ASN.1-combine.patch new file mode 100644 index 0000000..6fc4d0e --- /dev/null +++ b/meta/recipes-connectivity/openssl/openssl/CVE-2015-3195-Fix-leak-with-ASN.1-combine.patch @@ -0,0 +1,66 @@ +From cc598f321fbac9c04da5766243ed55d55948637d Mon Sep 17 00:00:00 2001 +From: "Dr. Stephen Henson" +Date: Tue, 10 Nov 2015 19:03:07 +0000 +Subject: [PATCH] Fix leak with ASN.1 combine. + +When parsing a combined structure pass a flag to the decode routine +so on error a pointer to the parent structure is not zeroed as +this will leak any additional components in the parent. + +This can leak memory in any application parsing PKCS#7 or CMS structures. + +CVE-2015-3195. + +Thanks to Adam Langley (Google/BoringSSL) for discovering this bug using +libFuzzer. + +PR#4131 + +Reviewed-by: Richard Levitte + +Upstream-Status: Backport + +This patch was imported from +https://git.openssl.org/?p=openssl.git;a=commit;h=cc598f321fbac9c04da5766243ed55d55948637d + +Signed-off-by: Armin Kuster + +--- + crypto/asn1/tasn_dec.c | 7 +++++-- + 1 file changed, 5 insertions(+), 2 deletions(-) + +diff --git a/crypto/asn1/tasn_dec.c b/crypto/asn1/tasn_dec.c +index febf605..9256049 100644 +--- a/crypto/asn1/tasn_dec.c ++++ b/crypto/asn1/tasn_dec.c +@@ -180,6 +180,8 @@ int ASN1_item_ex_d2i(ASN1_VALUE **pval, const unsigned char **in, long len, + int otag; + int ret = 0; + ASN1_VALUE **pchptr, *ptmpval; ++ int combine = aclass & ASN1_TFLG_COMBINE; ++ aclass &= ~ASN1_TFLG_COMBINE; + if (!pval) + return 0; + if (aux && aux->asn1_cb) +@@ -500,7 +502,8 @@ int ASN1_item_ex_d2i(ASN1_VALUE **pval, const unsigned char **in, long len, + auxerr: + ASN1err(ASN1_F_ASN1_ITEM_EX_D2I, ASN1_R_AUX_ERROR); + err: +- ASN1_item_ex_free(pval, it); ++ if (combine == 0) ++ ASN1_item_ex_free(pval, it); + if (errtt) + ERR_add_error_data(4, "Field=", errtt->field_name, + ", Type=", it->sname); +@@ -689,7 +692,7 @@ static int asn1_template_noexp_d2i(ASN1_VALUE **val, + } else { + /* Nothing special */ + ret = ASN1_item_ex_d2i(val, &p, len, ASN1_ITEM_ptr(tt->item), +- -1, 0, opt, ctx); ++ -1, tt->flags & ASN1_TFLG_COMBINE, opt, ctx); + if (!ret) { + ASN1err(ASN1_F_ASN1_TEMPLATE_NOEXP_D2I, ERR_R_NESTED_ASN1_ERROR); + goto err; +-- +2.3.5 + diff --git a/meta/recipes-connectivity/openssl/openssl_1.0.2d.bb b/meta/recipes-connectivity/openssl/openssl_1.0.2d.bb index 0364b64..3864e88 100644 --- a/meta/recipes-connectivity/openssl/openssl_1.0.2d.bb +++ b/meta/recipes-connectivity/openssl/openssl_1.0.2d.bb @@ -40,6 +40,7 @@ SRC_URI += "file://configure-targets.patch \ file://CVE-2015-3193-bn-asm-x86_64-mont5.pl-fix-carry-propagating-bug-CVE.patch \ file://CVE-2015-3194-1-Add-PSS-parameter-check.patch \ file://0001-Add-test-for-CVE-2015-3194.patch \ + file://CVE-2015-3195-Fix-leak-with-ASN.1-combine.patch \ " SRC_URI[md5sum] = "38dd619b2e77cbac69b99f52a053d25a" -- 2.3.5