Bug 156269 - CAN-2005-1228 directory traversal bug
CAN-2005-1228 directory traversal bug
Status: CLOSED RAWHIDE
Product: Fedora
Classification: Fedora
Component: gzip (Show other bugs)
3
All Linux
medium Severity low
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Assigned To: Ivana Varekova
Ben Levenson
impact=low,public=20050418,reported=2...
: Security
Depends On:
Blocks:
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Reported: 2005-04-28 11:47 EDT by Josh Bressers
Modified: 2007-11-30 17:11 EST (History)
0 users

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Doc Type: Bug Fix
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Last Closed: 2005-05-03 06:11:28 EDT
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RHEL 7.3 requirements from Atomic Host:


Attachments (Terms of Use)
Used patch. (517 bytes, patch)
2005-04-29 09:47 EDT, Ivana Varekova
no flags Details | Diff

  None (edit)
Description Josh Bressers 2005-04-28 11:47:00 EDT
+++ This bug was initially created as a clone of Bug #156266 +++

A directory traversal bug exists in multiple versions of gzip. When
compressing a file, gzip saves its original name but not its path inside
the compressed file. When using gunzip's "-N" option, the original name
found inside the compressed file will be used as the name to save the
decompressed file with. "gunzip -N" doesn't check if the original name inside
the compressed file has any "/" characters in it. This makes it possible to
create a malicious compressed file that when decompressed with "gunzip -N"
will create a file at an arbitrary location in the file system.

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=305255
Comment 1 Ivana Varekova 2005-04-29 09:47:44 EDT
Created attachment 113840 [details]
Used patch.

I used Ulf Harnhammar.
I fixed this problem in devel (gzip-1.3.5-5). 
(Gunzip remove any directory prefix if you use -N and in compressed input file
contain name with "/" characters.)

Ivana Varekova

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