oss-sec mailing list archives

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

From: Emmanuel Law <emmanuel.law () gmail com>
Date: Thu, 19 Mar 2015 08:31:14 +1300

Yup we realised that and notified libzip.
On 19/03/2015 8:05 am, "Timo Warns" <Timo.Warns () gmail 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?

Cheers, Timo

Current thread:

CVE Request: ZIP Integer Overflow leads to writing past heap boundary Emmanuel Law (Mar 18)
- Re: CVE Request: ZIP Integer Overflow leads to writing past heap boundary cve-assign (Mar 18)
  - Re: Re: CVE Request: ZIP Integer Overflow leads to writing past heap boundary Timo Warns (Mar 18)
    - Re: Re: CVE Request: ZIP Integer Overflow leads to writing past heap boundary Emmanuel Law (Mar 18)
- Re: CVE Request: ZIP Integer Overflow leads to writing past heap boundary Timo Warns (Mar 18)
  - Re: CVE Request: ZIP Integer Overflow leads to writing past heap boundary Emmanuel Law (Mar 18)
    - Re: CVE Request: ZIP Integer Overflow leads to writing past heap boundary Thomas Klausner (Mar 23)