From: Lee Chee Yang <[email protected]>

Signed-off-by: Lee Chee Yang <[email protected]>
---
 .../opensc/files/CVE-2023-2977.patch          | 54 +++++++++++++++++++
 .../recipes-support/opensc/opensc_0.23.0.bb   |  1 +
 2 files changed, 55 insertions(+)
 create mode 100644 meta-oe/recipes-support/opensc/files/CVE-2023-2977.patch

diff --git a/meta-oe/recipes-support/opensc/files/CVE-2023-2977.patch 
b/meta-oe/recipes-support/opensc/files/CVE-2023-2977.patch
new file mode 100644
index 0000000000..165fc316bf
--- /dev/null
+++ b/meta-oe/recipes-support/opensc/files/CVE-2023-2977.patch
@@ -0,0 +1,54 @@
+CVE: CVE-2023-2977
+Upstream-Status: Backport [ 
https://github.com/OpenSC/OpenSC/commit/81944d1529202bd28359bede57c0a15deb65ba8a
 ]
+Signed-off-by: Lee Chee Yang <[email protected]>
+
+
+From 81944d1529202bd28359bede57c0a15deb65ba8a Mon Sep 17 00:00:00 2001
+From: fullwaywang <[email protected]>
+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)
diff --git a/meta-oe/recipes-support/opensc/opensc_0.23.0.bb 
b/meta-oe/recipes-support/opensc/opensc_0.23.0.bb
index f68107df87..b3fc1f0458 100644
--- a/meta-oe/recipes-support/opensc/opensc_0.23.0.bb
+++ b/meta-oe/recipes-support/opensc/opensc_0.23.0.bb
@@ -16,6 +16,7 @@ SRCREV = "5497519ea6b4af596628f8f8f2f904bacaa3148f"
 SRC_URI = "git://github.com/OpenSC/OpenSC;branch=master;protocol=https \
            file://0001-pkcs11-tool-Fix-private-key-import.patch \
            
file://0002-pkcs11-tool-Log-more-information-on-OpenSSL-errors.patch \
+           file://CVE-2023-2977.patch \
           "
 DEPENDS = "virtual/libiconv openssl"
 
-- 
2.37.3

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