Bug 492861

Summary: POSIX_MAX_PATH vs MAX_PATH problem in muttlib.c:810
Product: [Fedora] Fedora Reporter: Fabrice Bellet <fabrice>
Component: muttAssignee: Miroslav Lichvar <mlichvar>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: rawhideCC: fabrice, lmacken, mlichvar, pertusus
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OS: Linux   
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Last Closed: 2009-04-01 15:08:45 UTC Type: ---
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Description Fabrice Bellet 2009-03-30 12:48:13 UTC 
the rawhide version of mutt fails with a 'buffer overflow' error, because of the size check of the 2nd parameter of function realpath(). tmp is defined as a char tmp[_POSIX_PATH_MAX], but its size is expected to be at least PATH_MAX (4096 vs 256) in the glibc check from realpath_chk.c:30

char *
__realpath_chk (const char *buf, char *resolved, size_t resolvedlen)
{
#ifdef PATH_MAX
  if (resolvedlen < PATH_MAX)
    __chk_fail ();

  return __realpath (buf, resolved);
#else
Comment 1 Miroslav Lichvar 2009-04-01 15:08:45 UTC 
Fixed in mutt-1.5.19-4.fc11. Thanks.