Bug 155751 - CAN-2005-1111 Race condition in cpio
CAN-2005-1111 Race condition in cpio
Status: CLOSED CANTFIX
Product: Fedora Legacy
Classification: Retired
Component: cpio (Show other bugs)
fc3
All Linux
medium Severity medium
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Assigned To: Fedora Legacy Bugs
Brock Organ
impact=moderate,public=20050413,sourc...
: Reopened, Security
Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2005-04-22 14:51 EDT by Josh Bressers
Modified: 2007-04-18 13:24 EDT (History)
2 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2007-04-10 15:16:39 EDT
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Attachments (Terms of Use)
patch fix cpio-2.6 race condition (4.01 KB, patch)
2005-04-25 09:06 EDT, Peter Vrabec
no flags Details | Diff

  None (edit)
Description Josh Bressers 2005-04-22 14:51:29 EDT
+++ This bug was initially created as a clone of Bug #155749 +++

Race condition in cpio 2.6 and earlier allows local users to modify permissions
of arbitrary files via a hard link attack on a file while it is being
decompressed, whose permissions are changed by cpio after the decompression is
complete.

http://marc.theaimsgroup.com/?l=bugtraq&m=111342664116120&w=2
Comment 1 Peter Vrabec 2005-04-25 09:06:14 EDT
Created attachment 113628 [details]
patch fix cpio-2.6 race condition

I replaced some chown, chmod with fchmod and fchown. And close file descriptor
later.
Comment 2 Michal Jaegermann 2005-07-12 12:43:49 EDT
This bug is CLOSED RAWHIDE, and hopefuly fixed in cpio-2.6-7 from FC4 although
there is no explicit note to the effect in a changelog there, but I do not see
a security update for FC3 which would cover that bug and also CAN-2005-1229
(bug #156314) and this leaves those installations vulnerable.
Comment 3 Matthew Miller 2006-10-19 15:31:23 EDT
Reopening as per comment #2.
Comment 4 Matthew Miller 2006-10-19 15:32:53 EDT
also, confirming that this is fixed in FC4 and on.
Comment 5 Matthew Miller 2007-04-10 15:16:39 EDT
Fedora Core 3 is now completely unmaintained. These bugs can't be fixed in that
version. If the issue still persists in current Fedora Core, please reopen.
Thank you, and sorry about this.

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