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Debian GNU/Linux Advisory: unzip

Aug 26, 2003, 15:59 (0 Talkback[s])

Debian Security Advisory DSA 344-2 Matt Zimmerman
August 26th, 2003

Package : unzip
Vulnerability : directory traversal
Problem-Type : local
Debian-specific : no
CVE Ids : CAN-2003-0282

A directory traversal vulnerability in UnZip 5.50 allows attackers to bypass a check for relative pathnames ("../") by placing certain invalid characters between the two "." characters. The fix which was implemented in DSA-344-1 may not have protected against all methods of exploiting this vulnerability.

For the stable distribution (woody) this problem has been fixed in version 5.50-1woody2.

For the unstable distribution (sid) this problem has been fixed in version 5.50-3.

We recommend that you update your unzip package.

Upgrade Instructions

wget url

will fetch the file for you
dpkg -i file.deb

will install the referenced file.

If you are using the apt-get package manager, use the line for sources.list as given below:

apt-get update

will update the internal database apt-get upgrade

will install corrected packages

You may use an automated update by adding the resources from the footer to the proper configuration.

Debian GNU/Linux 3.0 alias woody

Source archives:
Size/MD5 checksum: 571 357a3df0f8b5db02ece036643391dcff
Size/MD5 checksum: 5049 33fde5244d8309bc768ddc3a0b4e2f94
Size/MD5 checksum: 1068379 6d27bcdf9b51d0ad0f78161d0f99582e

Alpha architecture:
Size/MD5 checksum: 160152 de975e2f34dfb01474a50684330a42a3

ARM architecture:
Size/MD5 checksum: 139214 9d2c2b9ed700e0eb7ecefec83cca6ab9

Intel IA-32 architecture:
Size/MD5 checksum: 122516 6276a9184819b15202548cc0d256ea5b

Intel IA-64 architecture:
Size/MD5 checksum: 190682 698db8f4c479b0ac4bd36be80bbb6e57

HP Precision architecture:
Size/MD5 checksum: 146718 2a256d26b91722e8a61f2abc2749770c

Motorola 680x0 architecture:
Size/MD5 checksum: 119336 c41cb95920762fd9a7da4ba51663cc48

Big endian MIPS architecture:
Size/MD5 checksum: 142810 69570ffd84f2388b62875d5167250fe4

Little endian MIPS architecture:
Size/MD5 checksum: 143294 921f33ce8514a2734475bf83de949adf

PowerPC architecture:
Size/MD5 checksum: 136226 0a28157fa0fbee952ac7751338831f7d

IBM S/390 architecture:
Size/MD5 checksum: 136788 d3cc767b0564ab5eb9b7157dd0373d45

Sun Sparc architecture:
Size/MD5 checksum: 147282 68f85c2ff2340a0e5f9015718f975539

These files will probably be moved into the stable distribution on its next revision.

For apt-get: deb stable/updates main
For dpkg-ftp: dists/stable/updates/main
Mailing list:
Package info: `apt-cache show <pkg>' and