diff options
Diffstat (limited to 'gnu/packages/patches/qemu-CVE-2018-16867.patch')
| -rw-r--r-- | gnu/packages/patches/qemu-CVE-2018-16867.patch | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/gnu/packages/patches/qemu-CVE-2018-16867.patch b/gnu/packages/patches/qemu-CVE-2018-16867.patch new file mode 100644 index 0000000000..1403d8e0f8 --- /dev/null +++ b/gnu/packages/patches/qemu-CVE-2018-16867.patch @@ -0,0 +1,49 @@ +Fix CVE-2018-16867: + +https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-16867 +https://seclists.org/oss-sec/2018/q4/202 + +Patch copied from upstream source repository: + +https://git.qemu.org/?p=qemu.git;a=commitdiff;h=c52d46e041b42bb1ee6f692e00a0abe37a9659f6 + +From c52d46e041b42bb1ee6f692e00a0abe37a9659f6 Mon Sep 17 00:00:00 2001 +From: Gerd Hoffmann <kraxel@redhat.com> +Date: Mon, 3 Dec 2018 11:10:45 +0100 +Subject: [PATCH] usb-mtp: outlaw slashes in filenames +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Slash is unix directory separator, so they are not allowed in filenames. +Note this also stops the classic escape via "../". + +Fixes: CVE-2018-16867 +Reported-by: Michael Hanselmann <public@hansmi.ch> +Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> +Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> +Message-id: 20181203101045.27976-3-kraxel@redhat.com +--- + hw/usb/dev-mtp.c | 6 ++++++ + 1 file changed, 6 insertions(+) + +diff --git a/hw/usb/dev-mtp.c b/hw/usb/dev-mtp.c +index 0f6a9702ef1..100b7171f4e 100644 +--- a/hw/usb/dev-mtp.c ++++ b/hw/usb/dev-mtp.c +@@ -1719,6 +1719,12 @@ static void usb_mtp_write_metadata(MTPState *s) + + filename = utf16_to_str(dataset->length, dataset->filename); + ++ if (strchr(filename, '/')) { ++ usb_mtp_queue_result(s, RES_PARAMETER_NOT_SUPPORTED, d->trans, ++ 0, 0, 0, 0); ++ return; ++ } ++ + o = usb_mtp_object_lookup_name(p, filename, dataset->length); + if (o != NULL) { + next_handle = o->handle; +-- +2.19.2 + |