Debian Security Advisory

DSA-344-2 unzip -- directory traversal

Date Reported:

08 Jul 2003

Affected Packages:

unzip

Vulnerable:

Yes

Security database references:

In Mitre's CVE dictionary: CAN-2003-0282.

More information:

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.

Fixed in:

Debian GNU/Linux 3.0 (woody)

Source:

http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2.dsc

http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2.diff.gz

http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50.orig.tar.gz

Alpha:

http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_alpha.deb

ARM:

http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_arm.deb

Intel IA-32:

http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_i386.deb

Intel IA-64:

http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_ia64.deb

HPPA:

http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_hppa.deb

Motorola 680x0:

http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_m68k.deb

Big endian MIPS:

http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_mips.deb

Little endian MIPS:

http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_mipsel.deb

PowerPC:

http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_powerpc.deb

IBM S/390:

http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_s390.deb

Sun Sparc:

http://security.debian.org/pool/updates/main/u/unzip/unzip_5.50-1woody2_sparc.deb

MD5 checksums of the listed files are available in the original advisory.

MD5 checksums of the listed files are available in the original advisory.