oss-sec mailing list archives
Re: CVE request: X server crash by client
From: Alan Coopersmith <alan.coopersmith () oracle com>
Date: Mon, 27 Apr 2015 16:31:55 -0700
On 04/24/15 08:00 AM, Marcus Meissner wrote:
Hi, We got notified that the fix for CVE-2014-8092 introduced the possibility of a division by 0 when the "height" for the PutImage call is 0, leading to X server abort. https://bugzilla.novell.com/show_bug.cgi?id=928520 This was already fixed in January in X git. http://cgit.freedesktop.org/xorg/xserver/commit/?id=dc777c346d5d452a53b13b917c45f6a1bad2f20b As this is a local denial of service, but might be triggerable by images with 0 height supplied externally, it might need a CVE.
Right - the ability of an already authenticated client to end the X session is generally not considered a vulnerability in Xorg, since we provide intentional mechanism to do so already, but doing so because an external data source (web site, document file, etc.) provided a bad image could be. -- -Alan Coopersmith- alan.coopersmith () oracle com X.Org Security Response Team - xorg-security () lists x org
Current thread:
- CVE request: X server crash by client Marcus Meissner (Apr 24)
- Re: CVE request: X server crash by client cve-assign (Apr 24)
- Re: Re: CVE request: X server crash by client Marcus Meissner (Apr 25)
- Re: CVE request: X server crash by client Alan Coopersmith (Apr 27)
- Re: CVE request: X server crash by client cve-assign (Apr 24)