From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 129593 invoked by alias); 3 Apr 2017 21:43:58 -0000 Mailing-List: contact elfutils-devel-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Post: List-Help: List-Subscribe: Sender: elfutils-devel-owner@sourceware.org Received: (qmail 129558 invoked by uid 48); 3 Apr 2017 21:43:53 -0000 From: "mark at klomp dot org" To: elfutils-devel@sourceware.org Subject: [Bug tools/21299] heap-based buffer overflow in handle_gnu_hash (readelf.c) Date: Mon, 03 Apr 2017 21:43:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: elfutils X-Bugzilla-Component: tools X-Bugzilla-Version: unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: mark at klomp dot org X-Bugzilla-Status: RESOLVED X-Bugzilla-Resolution: FIXED X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at sourceware dot org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status cc resolution Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://sourceware.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2017-q2/txt/msg00006.txt.bz2 https://sourceware.org/bugzilla/show_bug.cgi?id=3D21299 Mark Wielaard changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED CC| |mark at klomp dot org Resolution|--- |FIXED --- Comment #2 from Mark Wielaard --- commit 9d84fdd78705d7a1b9947a9f4ca77fbccdd76d4a Author: Mark Wielaard Date: Fri Mar 24 12:15:02 2017 +0100 readelf: Fix off by one sanity check in handle_gnu_hash. We sanity check to make sure we don't index outside the chain array by testing inner > max_nsyms. But inner is a zero-based index, while max_nsyms is the maximum number. Change the check to inner >=3D max_nsy= ms. https://sourceware.org/bugzilla/show_bug.cgi?id=3D21299 Signed-off-by: Mark Wielaard --=20 You are receiving this mail because: You are on the CC list for the bug.