diff options
Diffstat (limited to 'meta-oe/recipes-support/opensc/files/CVE-2023-2977.patch')
| -rw-r--r-- | meta-oe/recipes-support/opensc/files/CVE-2023-2977.patch | 53 |
1 files changed, 53 insertions, 0 deletions
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..6a635a7ce6 --- /dev/null +++ b/meta-oe/recipes-support/opensc/files/CVE-2023-2977.patch @@ -0,0 +1,53 @@ +commit 81944d1529202bd28359bede57c0a15deb65ba8a +Author: fullwaywang <fullwaywang@tencent.com> +Date: Mon May 29 10:38:48 2023 +0800 +Subject: [PATCH] pkcs15init: correct left length calculation to fix buffer overrun bug. + + Fixes #2785 + +CVE: CVE-2023-2977 + +Upstream-Status: Backport [https://github.com/OpenSC/OpenSC/pull/2787/commits/3bf3ab2f9091f984cda6dd910654ccbbe3f06a40] + +Signed-off-by: Soumya <soumya.sambu@windriver.com> +--- + +diff --git a/src/pkcs15init/pkcs15-cardos.c b/src/pkcs15init/pkcs15-cardos.c +index 9715cf39..f41f73c3 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) |