mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-12-26 22:38:07 -05:00
37acc8a07b
* gnu/packages/patches/qemu-CVE-2017-5667.patch, gnu/packages/patches/qemu-CVE-2017-5898.patch, gnu/packages/patches/qemu-CVE-2017-5931.patch: New files. * gnu/local.mk (dist_patch_DATA): Add them. gnu/packages/qemu.scm (qemu)[source]: Use them.
55 lines
2 KiB
Diff
55 lines
2 KiB
Diff
Fix CVE-2017-5931 (integer overflow in handling virtio-crypto requests):
|
|
|
|
http://seclists.org/oss-sec/2017/q1/337
|
|
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5931
|
|
|
|
Patch copied from upstream source repository:
|
|
|
|
http://git.qemu-project.org/?p=qemu.git;a=commit;h=a08aaff811fb194950f79711d2afe5a892ae03a4
|
|
|
|
From a08aaff811fb194950f79711d2afe5a892ae03a4 Mon Sep 17 00:00:00 2001
|
|
From: Gonglei <arei.gonglei@huawei.com>
|
|
Date: Tue, 3 Jan 2017 14:50:03 +0800
|
|
Subject: [PATCH] virtio-crypto: fix possible integer and heap overflow
|
|
|
|
Because the 'size_t' type is 4 bytes in 32-bit platform, which
|
|
is the same with 'int'. It's easy to make 'max_len' to zero when
|
|
integer overflow and then cause heap overflow if 'max_len' is zero.
|
|
|
|
Using uint_64 instead of size_t to avoid the integer overflow.
|
|
|
|
Cc: qemu-stable@nongnu.org
|
|
Reported-by: Li Qiang <liqiang6-s@360.cn>
|
|
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
|
|
Tested-by: Li Qiang <liqiang6-s@360.cn>
|
|
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
|
|
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
|
|
---
|
|
hw/virtio/virtio-crypto.c | 4 ++--
|
|
1 file changed, 2 insertions(+), 2 deletions(-)
|
|
|
|
diff --git a/hw/virtio/virtio-crypto.c b/hw/virtio/virtio-crypto.c
|
|
index 2f2467e859..c23e1ad458 100644
|
|
--- a/hw/virtio/virtio-crypto.c
|
|
+++ b/hw/virtio/virtio-crypto.c
|
|
@@ -416,7 +416,7 @@ virtio_crypto_sym_op_helper(VirtIODevice *vdev,
|
|
uint32_t hash_start_src_offset = 0, len_to_hash = 0;
|
|
uint32_t cipher_start_src_offset = 0, len_to_cipher = 0;
|
|
|
|
- size_t max_len, curr_size = 0;
|
|
+ uint64_t max_len, curr_size = 0;
|
|
size_t s;
|
|
|
|
/* Plain cipher */
|
|
@@ -441,7 +441,7 @@ virtio_crypto_sym_op_helper(VirtIODevice *vdev,
|
|
return NULL;
|
|
}
|
|
|
|
- max_len = iv_len + aad_len + src_len + dst_len + hash_result_len;
|
|
+ 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");
|
|
return NULL;
|
|
--
|
|
2.11.1
|
|
|