Re: [Qemu-devel] [PATCH for-2.0 18/47] curl: check data size before memcpy to local buffer. (CVE-2014-0144)

[Max Reitz]

On 26.03.2014 13:05, Stefan Hajnoczi wrote:
> From: Fam Zheng <address@hidden>
>
> curl_read_cb is callback function for libcurl when data arrives. The
> data size passed in here is not guaranteed to be within the range of
> request we submitted, so we may overflow the guest IO buffer. Check the
> real size we have before memcpy to buffer to avoid overflow.
>
> Signed-off-by: Fam Zheng <address@hidden>
> Reviewed-by: Stefan Hajnoczi <address@hidden>
> Signed-off-by: Kevin Wolf <address@hidden>
> ---
>   block/curl.c | 5 +++++
>   1 file changed, 5 insertions(+)

Reviewed-by: Max Reitz <address@hidden>