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Date: Mon, 5 Dec 2016 16:27:38 -0600 (CST)
From: "Steven M. Schweda" <sms@...inode.info>
To: tyhicks@...onical.com, oss-security@...ts.openwall.com
Cc: security@...ntu.com, Info-ZIP-Dev@...tley.com
Subject: Re: CVE Request: Info-Zip zipinfo buffer overflow

From: Tyler Hicks <tyhicks@...onical.com>

> >    Thanks for the (thorough, helpful) report.
> 
> I appreciate it but Alexis deserves most of the credit.

   The item in the next History.610 file should resemble:

 - In ZipInfo ("-Z", /ZIPINFO) short-format ("-s", /SHORT, default)
   reports, an unexpectedly large compression method value (>999) caused
   a (mostly harmless) buffer overflow, and spoiled the report format.
   Now, values less than 1000 are displayed as before, using a
   three-digit decimal format, "uDDD", but larger values are displayed
   using a four-digit (unlabled) hexadecimal format, "XXXX".
   https://launchpad.net/bugs/1643750
   (zipinfo.c) [Alexis Vanden Eijnde, Tyler Hicks, SMS]

(Credit is cheap.)

> Thanks for the quick fix. Is there a public code repository available so
> that we can reference a specific commit that fixes this issue?

   No.  We've been thinking about it, though.

> Nope. As you probably noticed, MITRE just assigned a CVE. It likely
> helped that you confirmed the issue.

   Swell.  (One fewer thing I need to know.)

>  Thanks again!

   Same to you (plural).

------------------------------------------------------------------------

   Steven M. Schweda               sms@...inode-info

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