opensc: patch CVE-2025-49010

Details: https://nvd.nist.gov/vuln/detail/CVE-2025-49010

Backport the patch referenced by the wiki[1] mentioned in the nvd.

[1] https://github.com/OpenSC/OpenSC/wiki/CVE-2025-49010

Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
Signed-off-by: Anuj Mittal <anuj.mittal@oss.qualcomm.com>

2 files changed, 73 insertions, 0 deletions

diff --git a/meta-oe/recipes-support/opensc/files/CVE-2025-49010.patch b/meta-oe/recipes-support/opensc/files/CVE-2025-49010.patch
new file mode 100644
index 0000000000..a0ac9fdad9
--- /dev/null
+++ b/meta-oe/recipes-support/opensc/files/CVE-2025-49010.patch
@@ -0,0 +1,72 @@
+From fd4c54b4571b2e1593a8331906b5f0ca2aa39283 Mon Sep 17 00:00:00 2001
+From: Frank Morgner <frankmorgner@gmail.com>
+Date: Thu, 22 May 2025 00:24:32 +0200
+Subject: [PATCH] fixed Stack-buffer-overflow WRITE in GET RESPONSE
+
+The do-while loop in apdu.c requires the output data to be set in any
+case, otherwise non existent data may be copied to the output data.
+
+fixes https://issues.oss-fuzz.com/issues/416351800
+fixes https://issues.oss-fuzz.com/issues/416295951
+
+(cherry picked from commit 953986f65db61871bbbff72788d861d67d5140c6)
+CVE: CVE-2025-49010
+Upstream-Status: Backport [https://github.com/OpenSC/OpenSC/commit/953986f65db61871bbbff72788d861d67d5140c6]
+Signed-off-by: Ankur Tyagi <ankur.tyagi85@gmail.com>
+---
+ src/libopensc/card-nqApplet.c | 11 ++++++-----
+ src/libopensc/iso7816.c       |  5 +++--
+ 2 files changed, 9 insertions(+), 7 deletions(-)
+
+diff --git a/src/libopensc/card-nqApplet.c b/src/libopensc/card-nqApplet.c
+index f9075b948..90706f4b1 100644
+--- a/src/libopensc/card-nqApplet.c
++++ b/src/libopensc/card-nqApplet.c
+@@ -190,9 +190,10 @@ static int nqapplet_finish(struct sc_card *card)
+        LOG_FUNC_RETURN(card->ctx, SC_SUCCESS);
+ }
+ 
+-static int nqapplet_get_response(struct sc_card *card, size_t *cb_resp, u8 *resp)
++static int
++nqapplet_get_response(struct sc_card *card, size_t *cb_resp, u8 *resp)
+ {
+-       struct sc_apdu apdu;
++       struct sc_apdu apdu = {0};
+        int rv;
+        size_t resplen;
+ 
+@@ -204,12 +205,12 @@ static int nqapplet_get_response(struct sc_card *card, size_t *cb_resp, u8 *resp
+ 
+        rv = sc_transmit_apdu(card, &apdu);
+        LOG_TEST_RET(card->ctx, rv, "APDU transmit failed");
+-       if (apdu.resplen == 0) {
+-               LOG_FUNC_RETURN(card->ctx, sc_check_sw(card, apdu.sw1, apdu.sw2));
+-       }
+ 
+        *cb_resp = apdu.resplen;
+ 
++       if (apdu.resplen == 0) {
++               LOG_FUNC_RETURN(card->ctx, sc_check_sw(card, apdu.sw1, apdu.sw2));
++       }
+        if (apdu.sw1 == 0x90 && apdu.sw2 == 0x00) {
+                rv = SC_SUCCESS;
+        } else if (apdu.sw1 == 0x61) {
+diff --git a/src/libopensc/iso7816.c b/src/libopensc/iso7816.c
+index 2fea84078..dc2f03c00 100644
+--- a/src/libopensc/iso7816.c
++++ b/src/libopensc/iso7816.c
+@@ -920,11 +920,12 @@ iso7816_get_response(struct sc_card *card, size_t *count, u8 *buf)
+ 
+        r = sc_transmit_apdu(card, &apdu);
+        LOG_TEST_RET(card->ctx, r, "APDU transmit failed");
+-       if (apdu.resplen == 0)
+-               LOG_FUNC_RETURN(card->ctx, sc_check_sw(card, apdu.sw1, apdu.sw2));
+ 
+        *count = apdu.resplen;
+ 
++       if (apdu.resplen == 0) {
++               LOG_FUNC_RETURN(card->ctx, sc_check_sw(card, apdu.sw1, apdu.sw2));
++       }
+        if (apdu.sw1 == 0x90 && apdu.sw2 == 0x00)
+                r = 0;                                  /* no more data to read */
+        else if (apdu.sw1 == 0x61)
diff --git a/meta-oe/recipes-support/opensc/opensc_0.25.1.bb b/meta-oe/recipes-support/opensc/opensc_0.25.1.bb
index e41c457fa8..bcdf5900ea 100644
--- a/meta-oe/recipes-support/opensc/opensc_0.25.1.bb
+++ b/meta-oe/recipes-support/opensc/opensc_0.25.1.bb
@@ -17,6 +17,7 @@ SRC_URI = "git://github.com/OpenSC/OpenSC;branch=stable-0.25;protocol=https \
            file://0001-PR-Fixes-for-uninitialized-memory-issues.patch \
            file://CVE-2024-8443-0001.patch \
            file://CVE-2024-8443-0002.patch \
+           file://CVE-2025-49010.patch \
          "
 DEPENDS = "virtual/libiconv openssl"