From: Lee Chee Yang <chee.yang....@intel.com> Signed-off-by: Lee Chee Yang <chee.yang....@intel.com> --- .../x11vnc/files/CVE-2020-29074.patch | 27 +++++++++++++++++++ .../recipes-graphics/x11vnc/x11vnc_0.9.16.bb | 1 + 2 files changed, 28 insertions(+) create mode 100644 meta-oe/recipes-graphics/x11vnc/files/CVE-2020-29074.patch
diff --git a/meta-oe/recipes-graphics/x11vnc/files/CVE-2020-29074.patch b/meta-oe/recipes-graphics/x11vnc/files/CVE-2020-29074.patch new file mode 100644 index 0000000000..fbdb9123cc --- /dev/null +++ b/meta-oe/recipes-graphics/x11vnc/files/CVE-2020-29074.patch @@ -0,0 +1,27 @@ +CVE: CVE-2020-29074 +Upstream-Status: Backport [https://github.com/LibVNC/x11vnc/commit/69eeb9f7baa14ca03b16c9de821f9876def7a36a ] +Signed-off-by: Lee Chee Yang <chee.yang....@intel.com> + + +From 69eeb9f7baa14ca03b16c9de821f9876def7a36a Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Gu=C3=A9nal=20DAVALAN?= <guenal.dava...@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); diff --git a/meta-oe/recipes-graphics/x11vnc/x11vnc_0.9.16.bb b/meta-oe/recipes-graphics/x11vnc/x11vnc_0.9.16.bb index 92b3ac5f67..3633bbc26b 100644 --- a/meta-oe/recipes-graphics/x11vnc/x11vnc_0.9.16.bb +++ b/meta-oe/recipes-graphics/x11vnc/x11vnc_0.9.16.bb @@ -11,6 +11,7 @@ PV .= "+git${SRCPV}" SRC_URI = "git://github.com/LibVNC/x11vnc;branch=master;protocol=https \ file://starting-fix.patch \ + file://CVE-2020-29074.patch \ " S = "${WORKDIR}/git" -- 2.37.3
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