From 5c718aab579d693ea3169ab4d29b5c3bc9105aa1 Mon Sep 17 00:00:00 2001 From: "Richard W.M. Jones" Date: Thu, 30 Oct 2014 14:02:25 +0000 Subject: [PATCH 06/12] handle: Check that pages do not extend beyond the end of the file. Thanks: Mahmoud Al-Qudsi (cherry picked from commit 4bbdf555f88baeae0fa804a369a81a83908bd705) --- lib/handle.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/lib/handle.c b/lib/handle.c index a3cbcf7..3a8f09b 100644 --- a/lib/handle.c +++ b/lib/handle.c @@ -247,6 +247,13 @@ hivex_open (const char *filename, int flags) goto error; } + if (off + page_size > h->size) { + SET_ERRNO (ENOTSUP, + "%s: page size %zu at 0x%zx extends beyond end of file, bad registry", + filename, page_size, off); + goto error; + } + /* Read the blocks in this page. */ size_t blkoff; struct ntreg_hbin_block *block; -- 1.8.3.1