fix CVE-2023-2977

0001-correct_left_length_calculation_to_fix_buffer.patch

@@ -0,0 +1,49 @@
+From 3bf3ab2f9091f984cda6dd910654ccbbe3f06a40 Mon Sep 17 00:00:00 2001
+From: fullwaywang <fullwaywang@tencent.com>
+Date: Mon, 29 May 2023 10:38:48 +0800
+Subject: [PATCH] pkcs15init: correct left length calculation to fix buffer
+ overrun bug. Fixes #2785
+
+---
+ src/pkcs15init/pkcs15-cardos.c | 10 +++++-----
+ 1 file changed, 5 insertions(+), 5 deletions(-)
+
+diff --git a/src/pkcs15init/pkcs15-cardos.c b/src/pkcs15init/pkcs15-cardos.c
+index 9715cf390f..f41f73c349 100644
+--- a/src/pkcs15init/pkcs15-cardos.c
++++ b/src/pkcs15init/pkcs15-cardos.c
+@@ -872,7 +872,7 @@ static int cardos_have_verifyrc_package(sc_card_t *card)
+ 	sc_apdu_t apdu;
+         u8        rbuf[SC_MAX_APDU_BUFFER_SIZE];
+         int       r;
+-	const u8  *p = rbuf, *q;
++	const u8  *p = rbuf, *q, *pp;
+ 	size_t    len, tlen = 0, ilen = 0;
+ 
+ 	sc_format_apdu(card, &apdu, SC_APDU_CASE_2_SHORT, 0xca, 0x01, 0x88);
+@@ -888,13 +888,13 @@ static int cardos_have_verifyrc_package(sc_card_t *card)
+ 		return 0;
+ 
+ 	while (len != 0) {
+-		p = sc_asn1_find_tag(card->ctx, p, len, 0xe1, &tlen);
+-		if (p == NULL)
++		pp = sc_asn1_find_tag(card->ctx, p, len, 0xe1, &tlen);
++		if (pp == NULL)
+ 			return 0;
+ 		if (card->type == SC_CARD_TYPE_CARDOS_M4_3)	{
+ 			/* the verifyRC package on CardOS 4.3B use Manufacturer ID 0x01	*/
+ 			/* and Package Number 0x07					*/
+-			q = sc_asn1_find_tag(card->ctx, p, tlen, 0x01, &ilen);
++			q = sc_asn1_find_tag(card->ctx, pp, tlen, 0x01, &ilen);
+ 			if (q == NULL || ilen != 4)
+ 				return 0;
+ 			if (q[0] == 0x07)
+@@ -902,7 +902,7 @@ static int cardos_have_verifyrc_package(sc_card_t *card)
+ 		} else if (card->type == SC_CARD_TYPE_CARDOS_M4_4)	{
+ 			/* the verifyRC package on CardOS 4.4 use Manufacturer ID 0x03	*/
+ 			/* and Package Number 0x02					*/
+-			q = sc_asn1_find_tag(card->ctx, p, tlen, 0x03, &ilen);
++			q = sc_asn1_find_tag(card->ctx, pp, tlen, 0x03, &ilen);
+ 			if (q == NULL || ilen != 4)
+ 				return 0;
+ 			if (q[0] == 0x02)

opensc.spec

@@ -3,12 +3,12 @@
 
 Name:            opensc
 Version:         0.23.0
-Release:         1
+Release:         2
 License:         LGPL-2.1-or-later
 Summary:         Smart card library and applications
 URL:             https://github.com/OpenSC/OpenSC/wiki
 Source0:         https://github.com/OpenSC/OpenSC/releases/download/%{version}/%{name}-%{version}.tar.gz
-
+Patch0:          0001-correct_left_length_calculation_to_fix_buffer.patch
 
 BuildRequires:   openssl-devel pcsc-lite-devel bash-completion docbook-style-xsl readline-devel
 BuildRequires:   desktop-file-utils /usr/bin/xsltproc autoconf automake libtool gcc
@@ -139,6 +139,9 @@ make check
 %{_datadir}/opensc/
 
 %changelog
+* Tue Sep 5 2023 Zhengxin Guo <guozhengxin@kylinos.cn> - 0.23.0-2
+- fix CVE-2023-2977
+
 * Wed Feb 1 2023 wangjunqi <wangjunqi@kylinos.cn> - 0.23.0-1
 - update version to 0.23.0