diff options
Diffstat (limited to 'meta-oe/recipes-support/opensc/opensc/CVE-2023-40661-1.patch')
| -rw-r--r-- | meta-oe/recipes-support/opensc/opensc/CVE-2023-40661-1.patch | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/meta-oe/recipes-support/opensc/opensc/CVE-2023-40661-1.patch b/meta-oe/recipes-support/opensc/opensc/CVE-2023-40661-1.patch new file mode 100644 index 0000000000..3ecff558cf --- /dev/null +++ b/meta-oe/recipes-support/opensc/opensc/CVE-2023-40661-1.patch @@ -0,0 +1,47 @@ +Origin: https://github.com/OpenSC/OpenSC/commit/245efe608d083fd4e4ec96793fdefd218e26fde7 +From: Jakub Jelen <jjelen@redhat.com> +Date: Thu, 17 Aug 2023 13:54:42 +0200 +Subject: pkcs15: Avoid buffer overflow when getting last update + +Thanks oss-fuzz + +https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=60769 + +CVE: CVE-2023-40661 +Upstream-Status: Backport [https://salsa.debian.org/opensc-team/opensc/-/commit/8026fb4ca0ed53d970c6c497252eb264d4192d50] +Signed-off-by: Virendra Thakur <virendrak@kpit.com> +Comment: Hunk refreshed based on codebase. + +--- + src/libopensc/pkcs15.c | 16 +++++++++------- + 1 file changed, 9 insertions(+), 7 deletions(-) + +diff --git a/src/libopensc/pkcs15.c b/src/libopensc/pkcs15.c +index eb7fc6afcd..4215b733a8 100644 +--- a/src/libopensc/pkcs15.c ++++ b/src/libopensc/pkcs15.c +@@ -528,7 +528,7 @@ + struct sc_context *ctx = p15card->card->ctx; + struct sc_file *file = NULL; + struct sc_asn1_entry asn1_last_update[C_ASN1_LAST_UPDATE_SIZE]; +- unsigned char *content, last_update[32]; ++ unsigned char *content, last_update[32] = {0}; + size_t lupdate_len = sizeof(last_update) - 1; + int r, content_len; + size_t size; +@@ -564,9 +564,11 @@ + if (r < 0) + return NULL; + +- p15card->tokeninfo->last_update.gtime = strdup((char *)last_update); +- if (!p15card->tokeninfo->last_update.gtime) +- return NULL; ++ if (asn1_last_update[0].flags & SC_ASN1_PRESENT) { ++ p15card->tokeninfo->last_update.gtime = strdup((char *)last_update); ++ if (!p15card->tokeninfo->last_update.gtime) ++ return NULL; ++ } + done: + sc_log(ctx, "lastUpdate.gtime '%s'", p15card->tokeninfo->last_update.gtime); + return p15card->tokeninfo->last_update.gtime; + |