diff options
Diffstat (limited to 'meta/recipes-extended/screen/screen/CVE-2020-9366.patch')
-rw-r--r-- | meta/recipes-extended/screen/screen/CVE-2020-9366.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/meta/recipes-extended/screen/screen/CVE-2020-9366.patch b/meta/recipes-extended/screen/screen/CVE-2020-9366.patch new file mode 100644 index 0000000000..a52b9e6e68 --- /dev/null +++ b/meta/recipes-extended/screen/screen/CVE-2020-9366.patch | |||
@@ -0,0 +1,48 @@ | |||
1 | From 8ce90c1d3d5bece150479d8bc9303fd9d9f45e03 Mon Sep 17 00:00:00 2001 | ||
2 | From: =?UTF-8?q?Amadeusz=20S=C5=82awi=C5=84ski?= <amade@asmblr.net> | ||
3 | Date: Thu, 30 Jan 2020 17:56:27 +0100 | ||
4 | Subject: [PATCH] Fix out of bounds access when setting w_xtermosc after OSC 49 | ||
5 | MIME-Version: 1.0 | ||
6 | Content-Type: text/plain; charset=UTF-8 | ||
7 | Content-Transfer-Encoding: 8bit | ||
8 | |||
9 | From: =?UTF-8?q?Amadeusz=20S=C5=82awi=C5=84ski?= <amade@asmblr.net> | ||
10 | MIME-Version: 1.0 | ||
11 | Content-Type: text/plain; charset=UTF-8 | ||
12 | Content-Transfer-Encoding: 8bit | ||
13 | |||
14 | echo -e "\e]49\e; \n\ec" | ||
15 | crashes screen. | ||
16 | |||
17 | This happens because 49 is divided by 10 and used as table index | ||
18 | resulting in access to w_xtermosc[4], which is out of bounds with table | ||
19 | itself being size 4. Increase size of table by 1 to 5, which is enough | ||
20 | for all current uses. | ||
21 | |||
22 | As this overwrites memory based on user input it is potential security | ||
23 | issue. | ||
24 | |||
25 | Reported-by: pippin@gimp.org | ||
26 | Signed-off-by: Amadeusz Sławiński <amade@asmblr.net> | ||
27 | |||
28 | Upstream-Status: Backport [https://git.savannah.gnu.org/cgit/screen.git/commit/?h=v.4.8.0&id=68386dfb1fa33471372a8cd2e74686758a2f527b] | ||
29 | CVE: CVE-2020-9366 | ||
30 | Signed-off-by: Anuj Mittal <anuj.mittal@intel.com> | ||
31 | |||
32 | --- | ||
33 | window.h | 2 +- | ||
34 | 1 file changed, 1 insertion(+), 1 deletion(-) | ||
35 | |||
36 | diff --git a/window.h b/window.h | ||
37 | index bd10dcd..a8afa19 100644 | ||
38 | --- a/window.h | ||
39 | +++ b/window.h | ||
40 | @@ -237,7 +237,7 @@ struct win | ||
41 | char w_vbwait; | ||
42 | char w_norefresh; /* dont redisplay when switching to that win */ | ||
43 | #ifdef RXVT_OSC | ||
44 | - char w_xtermosc[4][MAXSTR]; /* special xterm/rxvt escapes */ | ||
45 | + char w_xtermosc[5][MAXSTR]; /* special xterm/rxvt escapes */ | ||
46 | #endif | ||
47 | int w_mouse; /* mouse mode 0,9,1000 */ | ||
48 | #ifdef HAVE_BRAILLE | ||