diff options
Diffstat (limited to 'meta/recipes-devtools/qemu/qemu/CVE-2019-9824.patch')
-rw-r--r-- | meta/recipes-devtools/qemu/qemu/CVE-2019-9824.patch | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2019-9824.patch b/meta/recipes-devtools/qemu/qemu/CVE-2019-9824.patch new file mode 100644 index 0000000000..7f8300672b --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/CVE-2019-9824.patch | |||
@@ -0,0 +1,47 @@ | |||
1 | From d3222975c7d6cda9e25809dea05241188457b113 Mon Sep 17 00:00:00 2001 | ||
2 | From: William Bowling <will@wbowling.info> | ||
3 | Date: Fri, 1 Mar 2019 21:45:56 +0000 | ||
4 | Subject: [PATCH 1/1] slirp: check sscanf result when emulating ident | ||
5 | MIME-Version: 1.0 | ||
6 | Content-Type: text/plain; charset=utf8 | ||
7 | Content-Transfer-Encoding: 8bit | ||
8 | |||
9 | When emulating ident in tcp_emu, if the strchr checks passed but the | ||
10 | sscanf check failed, two uninitialized variables would be copied and | ||
11 | sent in the reply, so move this code inside the if(sscanf()) clause. | ||
12 | |||
13 | Signed-off-by: William Bowling <will@wbowling.info> | ||
14 | Cc: qemu-stable@nongnu.org | ||
15 | Cc: secalert@redhat.com | ||
16 | Message-Id: <1551476756-25749-1-git-send-email-will@wbowling.info> | ||
17 | Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> | ||
18 | Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> | ||
19 | |||
20 | Upstream-Status: Backport | ||
21 | https://git.qemu.org/?p=qemu.git;a=commitdiff;h=d3222975c7d6cda9e25809dea05241188457b113;hp=6c419a1e06c21c4568d5a12a9c5cafcdb00f6aa8 | ||
22 | CVE: CVE-2019-9824 | ||
23 | affects < 4.0.0 | ||
24 | Signed-off-by: Armin Kuster <akuster@mvista.com> | ||
25 | |||
26 | Index: qemu-3.0.0/slirp/tcp_subr.c | ||
27 | =================================================================== | ||
28 | --- qemu-3.0.0.orig/slirp/tcp_subr.c | ||
29 | +++ qemu-3.0.0/slirp/tcp_subr.c | ||
30 | @@ -662,12 +662,12 @@ tcp_emu(struct socket *so, struct mbuf * | ||
31 | break; | ||
32 | } | ||
33 | } | ||
34 | + so_rcv->sb_cc = snprintf(so_rcv->sb_data, | ||
35 | + so_rcv->sb_datalen, | ||
36 | + "%d,%d\r\n", n1, n2); | ||
37 | + so_rcv->sb_rptr = so_rcv->sb_data; | ||
38 | + so_rcv->sb_wptr = so_rcv->sb_data + so_rcv->sb_cc; | ||
39 | } | ||
40 | - so_rcv->sb_cc = snprintf(so_rcv->sb_data, | ||
41 | - so_rcv->sb_datalen, | ||
42 | - "%d,%d\r\n", n1, n2); | ||
43 | - so_rcv->sb_rptr = so_rcv->sb_data; | ||
44 | - so_rcv->sb_wptr = so_rcv->sb_data + so_rcv->sb_cc; | ||
45 | } | ||
46 | m_free(m); | ||
47 | return 0; | ||