Date: Wed, 9 Feb 2011 10:49:35 -0500 From: Dan Rosenberg <dan.j.rosenberg@...il.com> To: Eugene Teo <eugene@...hat.com> Cc: oss-security@...ts.openwall.com Subject: Re: CVE request: kernel: btrfs heap overflow I'm not aware of any distributions that support 2.6.37 kernels, but as far as I know this doesn't affect CVE eligibility (please correct me if I'm wrong). -Dan On Wed, Feb 9, 2011 at 10:20 AM, Eugene Teo <eugene@...hat.com> wrote: > On 02/09/2011 10:27 PM, Dan Rosenberg wrote: >> >> Commit bf5fc093c5b625e4259203f1cee7ca73488a5620 refactored >> btrfs_ioctl_space_info() and introduced security issues. Since they >> were all introduced at once and fixed at the same time, one CVE should >> suffice. >> >> Due to integer truncation or a signedness error in a typecasted >> comparison, an integer overflow in an allocation size calculation, and >> a failure to properly check bounds when copying data, it was possible >> for an unprivileged user to cause a denial-of-service due to writing >> to an invalid pointer (ZERO_SIZE_PTR) or cause a kernel heap overflow. >> >> -Dan >> >>  http://marc.info/?l=linux-kernel&m=129726078708425&w=2 > > Commit bf5fc093c was introduced very recently - v2.6.37-rc1 Sept last year. > Do we have commercially supported kernels that are affected by this? > > Thanks, Eugene >
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