oss-security - Re: CVE Request: ZIP Integer Overflow leads to writing past heap boundary

Follow @Openwall on Twitter for new release announcements and other news

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20150323214512.GB22688@danbala.tuwien.ac.at>
Date: Mon, 23 Mar 2015 22:45:12 +0100
From: Thomas Klausner <tk@...a.or.at>
To: oss-security@...ts.openwall.com
Cc: Timo Warns <Timo.Warns@...il.com>
Subject: Re: CVE Request: ZIP Integer Overflow leads to
 writing past heap boundary

On Thu, Mar 19, 2015 at 08:31:14AM +1300, Emmanuel Law wrote:
> Yup we realised that and notified libzip.
> On 19/03/2015 8:05 am, "Timo Warns" <Timo.Warns@...il.com> wrote:
> 
> > On 2015-03-18, Emmanuel Law wrote:
> > > found an integer overflow in PHP. When processing a malform zip file with
> > > many entires, it leads to a heap overflow.
> > >
> > > Affected Version <= PHP 5.6.6
> > > Bug Report: https://bugs.php.net/bug.php?id=69253
> > > Patch:
> > >
> > https://github.com/php/php-src/commit/ef8fc4b53d92fbfcd8ef1abbd6f2f5fe2c4a11e5
> >
> > This looks like it may also affect libzip upstream
> > (http://hg.nih.at/libzip/file/fa78ab51417f/lib/zip_dirent.c)
> >
> > Was upstream (in copy) informed about the issue?

We have since fixed this:

http://hg.nih.at/libzip/rev/9f11d54f692e

Thanks!
 Thomas

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.