From: "wenyi,xie" <xiewenyi2@huawei.com>
To: <devel@edk2.groups.io>, <jiewen.yao@intel.com>,
<jian.j.wang@intel.com>, <chao.b.zhang@intel.com>
Cc: <huangming23@huawei.com>, <songdongkuang@huawei.com>
Subject: [PATCH EDK2 v1 0/1] Enhanced verification of Offset(CVE-2019-14562)
Date: Wed, 12 Aug 2020 15:04:45 +0800 [thread overview]
Message-ID: <1597215886-48713-1-git-send-email-xiewenyi2@huawei.com> (raw)
Main Changes:
1.check offset inbetween VirtualAddress and VirtualAddress + Size.
2.Using SafeintLib to do offset addition with result check.
Code can also be found in github:
https://github.com/leadsama/edk2.git
branch: bug-2215-v1
Wenyi Xie (1):
SecurityPkg/DxeImageVerificationLib:Enhanced verification of
Offset(CVE-2019-14562)
SecurityPkg/Library/DxeImageVerificationLib/DxeImageVerificationLib.inf | 1 +
SecurityPkg/Library/DxeImageVerificationLib/DxeImageVerificationLib.h | 1 +
SecurityPkg/Library/DxeImageVerificationLib/DxeImageVerificationLib.c | 21 +++++++++++++++-----
3 files changed, 18 insertions(+), 5 deletions(-)
--
2.20.1.windows.1
next reply other threads:[~2020-08-12 7:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-12 7:04 wenyi,xie [this message]
2020-08-12 7:04 ` [PATCH EDK2 v1 1/1] SecurityPkg/DxeImageVerificationLib:Enhanced verification of Offset(CVE-2019-14562) wenyi,xie
2020-08-12 12:23 ` [edk2-devel] " Laszlo Ersek
2020-08-13 12:43 ` wenyi,xie
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