Bug 156269 – CAN-2005-1228 directory traversal bug

Bug 156269 - CAN-2005-1228 directory traversal bug

Summary:	CAN-2005-1228 directory traversal bug

Status:	CLOSED RAWHIDE

Aliases:	None

Product:	Fedora
Classification:	Fedora
Component:	gzip (Show other bugs)
Sub Component:
Version:	3
Hardware:	All Linux

Priority	medium Severity low
Target Milestone:	---
Target Release:	---
Assigned To:	Ivana Varekova
QA Contact:	Ben Levenson
Docs Contact:

URL:
Whiteboard:	impact=low,public=20050418,reported=2...
Keywords:	Security

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2005-04-28 11:47 EDT by Josh Bressers
Modified:	2007-11-30 17:11 EST (History)
CC List:	0 users

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2005-05-03 06:11:28 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
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
Add an attachment (proposed patch, testcase, etc.)

Groups: 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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