oss-security - Re: CVE requests: kernel: hfsplus-related bugs

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Date: Mon, 10 Nov 2008 13:27:42 +0800
From: Eugene Teo <eteo@...hat.com>
To: oss-security@...ts.openwall.com
CC: "Steven M. Christey" <coley@...us.mitre.org>, Greg KH <greg@...ah.com>
Subject: Re: CVE requests: kernel: hfsplus-related bugs

Eugene Teo wrote:
> These were committed in upstream kernel. Reported by Eric Sesterhenn.
> 
> 1) hfsplus: fix Buffer overflow with a corrupted image
> Upstream commit: efc7ffcb4237f8cb9938909041c4ed38f6e1bf40
> 
> When an hfsplus image gets corrupted it might happen that the catalog
> namelength field gets b0rked.  If we mount such an image the memcpy() in
> hfsplus_cat_build_key_uni() writes more than the 255 that fit in the
> name field.  Depending on the size of the overwritten data, we either
> only get memory corruption or also trigger an oops.

There's an equivalent bug for hfs. The upstream commit is d38b7aa. We
will need a CVE name for this too.

Greg, I don't recall seeing this in -stable kernel. FYI.

Thanks, Eugene

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