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Bug 155751 - CAN-2005-1111 Race condition in cpio
Summary: CAN-2005-1111 Race condition in cpio
Alias: None
Product: Fedora Legacy
Classification: Retired
Component: cpio
Version: fc3
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Fedora Legacy Bugs
QA Contact: Brock Organ
Whiteboard: impact=moderate,public=20050413,sourc...
Depends On:
TreeView+ depends on / blocked
Reported: 2005-04-22 18:51 UTC by Josh Bressers
Modified: 2007-04-18 17:24 UTC (History)
2 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2007-04-10 19:16:39 UTC

Attachments (Terms of Use)
patch fix cpio-2.6 race condition (deleted)
2005-04-25 13:06 UTC, Peter Vrabec
no flags Details | Diff

Description Josh Bressers 2005-04-22 18:51:29 UTC
+++ 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

Comment 1 Peter Vrabec 2005-04-25 13:06:14 UTC
Created attachment 113628 [details]
patch fix cpio-2.6 race condition

I replaced some chown, chmod with fchmod and fchown. And close file descriptor

Comment 2 Michal Jaegermann 2005-07-12 16:43:49 UTC
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 19:31:23 UTC
Reopening as per comment #2.

Comment 4 Matthew Miller 2006-10-19 19:32:53 UTC
also, confirming that this is fixed in FC4 and on.

Comment 5 Matthew Miller 2007-04-10 19:16:39 UTC
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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