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From e17869db99195849826eaaf5d2d0eb2cfdd7a2a7 Mon Sep 17 00:00:00 2001
From: Nick Clifton <nickc@redhat.com>
Date: Mon, 5 Aug 2019 10:40:35 +0100
Subject: [PATCH] Catch potential integer overflow in readelf when processing
corrupt binaries.
PR 24829
* readelf.c (apply_relocations): Catch potential integer overflow
whilst checking reloc location against section size.
Upstream-Status: Backport
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=e17869db99195849826eaaf5d2d0eb2cfdd7a2a7
CVE: CVE-2019-14444
Dropped changelog
Signed-off-by: Armin Kuster <akuster@mvista.com>
---
binutils/readelf.c | 2 +-
2 files changed, 7 insertions(+), 1 deletion(-)
Index: git/binutils/readelf.c
===================================================================
--- git.orig/binutils/readelf.c
+++ git/binutils/readelf.c
@@ -13113,7 +13113,7 @@ apply_relocations (Filedata *
}
rloc = start + rp->r_offset;
- if ((rloc + reloc_size) > end || (rloc < start))
+ if (rloc >= end || (rloc + reloc_size) > end || (rloc < start))
{
warn (_("skipping invalid relocation offset 0x%lx in section %s\n"),
(unsigned long) rp->r_offset,
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