mirror of
https://git.in.rschanz.org/ryan77627/guix.git
synced 2024-12-28 07:12:30 -05:00
34 lines
1.2 KiB
Diff
34 lines
1.2 KiB
Diff
|
Prevent buffer overflow when reading large messages.
|
||
|
|
|
||
|
|
https://bugzilla.redhat.com/show_bug.cgi?id=1401603
|
||
|
|
https://access.redhat.com/security/cve/CVE-2016-9577
|
||
|
|
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9577
|
||
|
|
https://security-tracker.debian.org/tracker/CVE-2016-9577
|
||
|
|
|
||
|
|
Patch copied from upstream source repository:
|
||
|
|
|
||
|
|
https://cgit.freedesktop.org/spice/spice/commit/?h=0.12&id=5f96b596353d73bdf4bb3cd2de61e48a7fd5b4c3
|
||
|
|
|
||
|
|
From 5f96b596353d73bdf4bb3cd2de61e48a7fd5b4c3 Mon Sep 17 00:00:00 2001
|
||
|
|
From: Frediano Ziglio <fziglio@redhat.com>
|
||
|
|
Date: Tue, 29 Nov 2016 16:46:56 +0000
|
||
|
|
Subject: main-channel: Prevent overflow reading messages from client
|
||
|
|
|
||
|
|
diff --git a/server/main_channel.c b/server/main_channel.c
|
||
|
|
index 0ecc9df..1fc3915 100644
|
||
|
|
--- a/server/main_channel.c
|
||
|
|
+++ b/server/main_channel.c
|
||
|
|
@@ -1026,6 +1026,9 @@ static uint8_t *main_channel_alloc_msg_rcv_buf(RedChannelClient *rcc,
|
||
|
|
|
||
|
|
if (type == SPICE_MSGC_MAIN_AGENT_DATA) {
|
||
|
|
return reds_get_agent_data_buffer(mcc, size);
|
||
|
|
+ } else if (size > sizeof(main_chan->recv_buf)) {
|
||
|
|
+ /* message too large, caller will log a message and close the connection */
|
||
|
|
+ return NULL;
|
||
|
|
} else {
|
||
|
|
return main_chan->recv_buf;
|
||
|
|
}
|
||
|
|
--
|
||
|
|
cgit v0.10.2
|
||
|
|
|