Date: Wed, 26 Oct 2011 09:22:01 -0600 From: Kurt Seifried <kseifried@...hat.com> To: oss-security@...ts.openwall.com CC: Marcus Meissner <meissner@...e.de> Subject: Re: CVE Request: openldap2 UTF8StringNormalize() can cause a (one-byte) buffer overflow On 10/26/2011 08:26 AM, Marcus Meissner wrote: > Hi, > > From our openldap2 Maintainer Ralf: > |A bug in UTF8StringNormalize() can cause a (one-byte) buffer overflow when it > |is passed a zero length string. (Can e.g. be triggered by passing a > |"postalAddressAttribute" with the value "$" (or no value a all). What the code > |does is writing a '\0' past a 1-byte long buffer allocated on the heap. (At > |least as far as I understand it) > | > |Upstream Bug: ITS#7059 > |http://www.openldap.org/its/index.cgi/Software%20Bugs?id=7059;selectid=7059 > | > |This bug is present in older releases as well. > | > |I wonder if this is really security relevant as it seem the worst that might > |happen is that an authenticated user can crash the daemon. I was not able to do > |so during a short test but I guess that is just a matter of trying long enough. > > Ciao, Marcus Please use CVE-2011-4079 for this issue -- -Kurt Seifried / Red Hat Security Response Team
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