Date: Mon, 29 Dec 2014 01:06:25 +0100 From: Moritz Mühlenhoff <jmm@...til.org> To: oss-security@...ts.openwall.com, cve-assign@...re.org Cc: Fiedler Roman <Roman.Fiedler@....ac.at>, security@...ntu.com Subject: Re: parse_datetime() bug in coreutils On Mon, Nov 24, 2014 at 06:47:24PM -0800, Seth Arnold wrote: > Hello, > > Fiedler Roman discovered that coreutils' parse_datetime() function > has some flaws that may be exploitable if the date(1), touch(1), > or potentially other programs, accept untrusted input for certain > parameters. While researching this issue, he discovered that it > was independantly discovered by Bertrand Jacquin and reported at > http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16872 > > $ touch '--date=TZ="123"345" @1' > Segmentation fault (core dumped) > $ date '--date=TZ="123"345" @1' > *** Error in `date': double free or corruption (out): 0x00007fffc9866c20 *** > Aborted (core dumped) > $ > > The GNU bugtracker has this patch to fix the problem: > http://debbugs.gnu.org/cgi/bugreport.cgi?msg=11;filename=date-tz-crash.patch;att=1;bug=16872 > and this patch to include the fix in coreutils and a small test case: > http://debbugs.gnu.org/cgi/bugreport.cgi?msg=19;filename=coreutils-date-crash.patch;att=1;bug=16872 > > Can a CVE please be assigned for this issue. This CVE request seems to have fallen through the cracks, adding cve-assign@...re.org to the recipients. Cheers, Moritz
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