diff options
Diffstat (limited to 'meta/recipes-devtools/qemu/qemu/CVE-2023-3180.patch')
-rw-r--r-- | meta/recipes-devtools/qemu/qemu/CVE-2023-3180.patch | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2023-3180.patch b/meta/recipes-devtools/qemu/qemu/CVE-2023-3180.patch new file mode 100644 index 0000000000..7144bdca46 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/CVE-2023-3180.patch @@ -0,0 +1,49 @@ +From 9d38a8434721a6479fe03fb5afb150ca793d3980 Mon Sep 17 00:00:00 2001 +From: zhenwei pi <pizhenwei@bytedance.com> +Date: Thu, 3 Aug 2023 10:43:13 +0800 +Subject: [PATCH] virtio-crypto: verify src&dst buffer length for sym request + +For symmetric algorithms, the length of ciphertext must be as same +as the plaintext. +The missing verification of the src_len and the dst_len in +virtio_crypto_sym_op_helper() may lead buffer overflow/divulged. + +This patch is originally written by Yiming Tao for QEMU-SECURITY, +resend it(a few changes of error message) in qemu-devel. + +Fixes: CVE-2023-3180 +Fixes: 04b9b37edda("virtio-crypto: add data queue processing handler") +Cc: Gonglei <arei.gonglei@huawei.com> +Cc: Mauro Matteo Cascella <mcascell@redhat.com> +Cc: Yiming Tao <taoym@zju.edu.cn> +Signed-off-by: zhenwei pi <pizhenwei@bytedance.com> +Message-Id: <20230803024314.29962-2-pizhenwei@bytedance.com> +Reviewed-by: Michael S. Tsirkin <mst@redhat.com> +Signed-off-by: Michael S. Tsirkin <mst@redhat.com> + +Upstream-Status: Backport from [https://gitlab.com/qemu-project/qemu/-/commit/9d38a8434721a6479fe03fb5afb150ca793d3980] +CVE: CVE-2023-3180 +Signed-off-by: Ashish Sharma <asharma@mvista.com> + + hw/virtio/virtio-crypto.c | 5 +++++ + 1 file changed, 5 insertions(+) + +diff --git a/hw/virtio/virtio-crypto.c b/hw/virtio/virtio-crypto.c +index 44faf5a522b..13aec771e11 100644 +--- a/hw/virtio/virtio-crypto.c ++++ b/hw/virtio/virtio-crypto.c +@@ -634,6 +634,11 @@ virtio_crypto_sym_op_helper(VirtIODevice *vdev, + return NULL; + } + ++ if (unlikely(src_len != dst_len)) { ++ virtio_error(vdev, "sym request src len is different from dst len"); ++ return NULL; ++ } ++ + max_len = (uint64_t)iv_len + aad_len + src_len + dst_len + hash_result_len; + if (unlikely(max_len > vcrypto->conf.max_size)) { + virtio_error(vdev, "virtio-crypto too big length"); +-- +GitLab + |