| CVE: CVE-2020-29074 |
| Upstream-Status: Backport [https://github.com/LibVNC/x11vnc/commit/69eeb9f7baa14ca03b16c9de821f9876def7a36a ] |
| Signed-off-by: Lee Chee Yang <chee.yang.lee@intel.com> |
| |
| |
| From 69eeb9f7baa14ca03b16c9de821f9876def7a36a Mon Sep 17 00:00:00 2001 |
| From: =?UTF-8?q?Gu=C3=A9nal=20DAVALAN?= <guenal.davalan@uca.fr> |
| Date: Wed, 18 Nov 2020 08:40:45 +0100 |
| Subject: [PATCH] scan: limit access to shared memory segments to current user |
| |
| --- |
| src/scan.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| diff --git a/src/scan.c b/src/scan.c |
| index 43e00d20..12994d52 100644 |
| --- a/src/scan.c |
| +++ b/src/scan.c |
| @@ -320,7 +320,7 @@ static int shm_create(XShmSegmentInfo *shm, XImage **ximg_ptr, int w, int h, |
| |
| #if HAVE_XSHM |
| shm->shmid = shmget(IPC_PRIVATE, |
| - xim->bytes_per_line * xim->height, IPC_CREAT | 0777); |
| + xim->bytes_per_line * xim->height, IPC_CREAT | 0600); |
| |
| if (shm->shmid == -1) { |
| rfbErr("shmget(%s) failed.\n", name); |