ad2aeff5ac
- Add shim-bsc1177315-verify-eku-codesign.patch to check CodeSign in the signer's EKU (bsc#1177315) - Add shim-bsc1177789-fix-null-pointer-deref-AuthenticodeVerify.patch to fix NULL pointer dereference in AuthenticodeVerify() (bsc#1177789, CVE-2019-14584) - shim-install: Support changing default shim efi binary in /usr/etc/default/shim and /etc/default/shim (bsc#1177315) - Add shim-bsc1177315-fix-buffer-use-after-free.patch to fix buffer use-after-free at the end of the EKU verification (bsc#1177315) OBS-URL: https://build.opensuse.org/request/show/845367 OBS-URL: https://build.opensuse.org/package/show/devel:openSUSE:Factory/shim?expand=0&rev=168
35 lines
939 B
Diff
35 lines
939 B
Diff
From 049bf5c1bd83643b9a6e8b7e67ea51ef7076cbc6 Mon Sep 17 00:00:00 2001
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From: Gary Lin <glin@suse.com>
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Date: Thu, 22 Oct 2020 14:00:04 +0800
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Subject: [PATCH] Cryptlib/CryptPkcs7VerifyEku: fix buffer use-after-free
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Merge the patch from edk2 upstream:
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https://bugzilla.tianocore.org/show_bug.cgi?id=2459
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Since SignerCert is actually a part of Pkcs7, PKCS7_free() also fress
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SignerCert, so there is no need to free SignerCert.
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Signed-off-by: Gary Lin <glin@suse.com>
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---
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Cryptlib/Pk/CryptPkcs7VerifyEku.c | 4 ----
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1 file changed, 4 deletions(-)
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diff --git a/Cryptlib/Pk/CryptPkcs7VerifyEku.c b/Cryptlib/Pk/CryptPkcs7VerifyEku.c
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index d086886..2c172e2 100644
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--- a/Cryptlib/Pk/CryptPkcs7VerifyEku.c
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+++ b/Cryptlib/Pk/CryptPkcs7VerifyEku.c
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@@ -507,10 +507,6 @@ Exit:
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free (SignedData);
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}
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- if (SignerCert != NULL) {
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- X509_free (SignerCert);
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- }
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-
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if (Pkcs7 != NULL) {
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PKCS7_free (Pkcs7);
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}
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--
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2.28.0
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