From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga04.intel.com (mga04.intel.com []) by mx.groups.io with SMTP id smtpd.web11.3343.1581665266656025367 for ; Thu, 13 Feb 2020 23:27:47 -0800 Authentication-Results: mx.groups.io; dkim=missing; spf=fail (domain: intel.com, ip: , mailfrom: jian.j.wang@intel.com) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga104.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 13 Feb 2020 23:27:47 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,439,1574150400"; d="scan'208";a="347904203" Received: from shwdeopensfp777.ccr.corp.intel.com ([10.239.158.78]) by fmsmga001.fm.intel.com with ESMTP; 13 Feb 2020 23:27:46 -0800 From: "Wang, Jian J" To: devel@edk2.groups.io Cc: Jiewen Yao , Chao Zhang Subject: [PATCH v2 01/10] SecurityPkg/DxeImageVerificationLib: Fix memory leaks(CVE-2019-14575) Date: Fri, 14 Feb 2020 15:27:36 +0800 Message-Id: <20200214072745.1570-2-jian.j.wang@intel.com> X-Mailer: git-send-email 2.24.0.windows.2 In-Reply-To: <20200214072745.1570-1-jian.j.wang@intel.com> References: <20200214072745.1570-1-jian.j.wang@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3D1608 Pointer HashCtx used in IsCertHashFoundInDatabase() is not freed inside the while-loop, if it will run more than once. Cc: Jiewen Yao Cc: Chao Zhang Signed-off-by: Jian J Wang Reviewed-by: Jiewen Yao --- .../Library/DxeImageVerificationLib/DxeImageVerificationLib.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/SecurityPkg/Library/DxeImageVerificationLib/DxeImageVerificati= onLib.c b/SecurityPkg/Library/DxeImageVerificationLib/DxeImageVerificationL= ib.c index dbfbfcb4fb..74dbffa122 100644 --- a/SecurityPkg/Library/DxeImageVerificationLib/DxeImageVerificationLib.c +++ b/SecurityPkg/Library/DxeImageVerificationLib/DxeImageVerificationLib.c @@ -908,6 +908,9 @@ IsCertHashFoundInDatabase ( goto Done;=0D }=0D =0D + FreePool (HashCtx);=0D + HashCtx =3D NULL;=0D +=0D SiglistHeaderSize =3D sizeof (EFI_SIGNATURE_LIST) + DbxList->Signature= HeaderSize;=0D CertHash =3D (EFI_SIGNATURE_DATA *) ((UINT8 *) DbxList + Sigl= istHeaderSize);=0D CertHashCount =3D (DbxList->SignatureListSize - SiglistHeaderSize)= / DbxList->SignatureSize;=0D --=20 2.24.0.windows.2