oss-sec mailing list archives

Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAME

From: Chet Ramey <chet.ramey () case edu>
Date: Fri, 16 Sep 2016 15:56:01 -0400

I believe the fix in parse.y is this (Chet, please correct me if I'm wrong):


Yes, that is the current fix for this.  There are other ways to do it.


Here's a patch to bash-4.3 that will fix this.

Chet

Attachment: prompt-string-comsub.patch
Description:

``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet () case edu    http://cnswww.cns.cwru.edu/~chet/

Current thread:

CVE-2016-0634 -- bash prompt expanding $HOSTNAME John Haxby (Sep 16)
- Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAME Jan Schaumann (Sep 16)
  - Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAME Chet Ramey (Sep 16)
    - Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAME John Haxby (Sep 18)
    - Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAME Seth Arnold (Sep 19)
    - Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAME John Haxby (Sep 20)
- Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAME Chet Ramey (Sep 16)
  - Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAME Chet Ramey (Sep 16)
    - Re: Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAME Leo Famulari (Sep 27)
    - Re: Re: CVE-2016-0634 -- bash prompt expanding $HOSTNAME Chet Ramey (Sep 29)