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From da928f639002002dfc649ed9f50492d5d6cb4cee Mon Sep 17 00:00:00 2001
From: Nick Clifton <nickc@redhat.com>
Date: Mon, 5 Dec 2022 11:11:44 +0000
Subject: [PATCH] Fix an illegal memory access when parsing a corrupt VMS Alpha
file.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Fix an illegal memory access when parsing a corrupt VMS Alpha file.
PR 29848
* vms-alpha.c (parse_module): Fix potential out of bounds memory
access.
Upstream-Status: Backport [https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff_plain;h=942fa4fb32738ecbb447546d54f1e5f0312d2ed4]
CVE: CVE-2023-25584
Signed-off-by: Deepthi Hemraj <Deepthi.Hemraj@windriver.com>
---
bfd/vms-alpha.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/bfd/vms-alpha.c b/bfd/vms-alpha.c
index c548722c..53b3f1bf 100644
--- a/bfd/vms-alpha.c
+++ b/bfd/vms-alpha.c
@@ -4361,7 +4361,7 @@ parse_module (bfd *abfd, struct module *module, unsigned char *ptr,
return false;
module->line_table = curr_line;
- while (length == -1 || ptr < maxptr)
+ while (length == -1 || (ptr + 3) < maxptr)
{
/* The first byte is not counted in the recorded length. */
int rec_length = bfd_getl16 (ptr) + 1;
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