BugTraq
MDKSA-2003:073-1 - Updated unzip packages fix vulnerability Aug 19 2003 09:59PM
Mandrake Linux Security Team (security linux-mandrake com)
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Mandrake Linux Security Update Advisory
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Package name: unzip
Advisory ID: MDKSA-2003:073-1
Date: August 19th, 2003
Original Advisory Date: July 7th, 2003
Affected versions: 8.2, 9.0, 9.1, Corporate Server 2.1,
Multi Network Firewall 8.2
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Problem Description:

A vulnerability was discovered in unzip 5.50 and earlier that allows
attackers to overwrite arbitrary files during archive extraction by
placing non-printable characters between two "." characters. These
invalid characters are filtered which results in a ".." sequence.

The patch applied to these packages prevents unzip from writing to
parent directories unless the "-:" command line option is used.

Update:

Ben Laurie found that the original patch used to fix this issue missed
a case where the path component included a quoted slash. An updated
patch was used to build these packages.
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References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0282
http://marc.theaimsgroup.com/?l=bugtraq&m=105259038503175
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Updated Packages:

Corporate Server 2.1:
eb83a1f819f0407da2a6abe8f9470e6d corporate/2.1/RPMS/unzip-5.50-4.2mdk.i586.rpm
ece7c5edb30cb80c00e902a61126e68d corporate/2.1/SRPMS/unzip-5.50-4.2mdk.src.rpm

Corporate Server 2.1/x86_64:
53ecb5284909bec78ef0b570dfbabf89 x86_64/corporate/2.1/RPMS/unzip-5.50-4.2mdk.x86_64.rpm
ece7c5edb30cb80c00e902a61126e68d x86_64/corporate/2.1/SRPMS/unzip-5.50-4.2mdk.src.rpm

Mandrake Linux 8.2:
da00ebf987ca4200ce2ed926bf4adaeb 8.2/RPMS/unzip-5.50-4.2mdk.i586.rpm
ece7c5edb30cb80c00e902a61126e68d 8.2/SRPMS/unzip-5.50-4.2mdk.src.rpm

Mandrake Linux 8.2/PPC:
07252553006b6d428289f4fdfadf46fd ppc/8.2/RPMS/unzip-5.50-4.2mdk.ppc.rpm
ece7c5edb30cb80c00e902a61126e68d ppc/8.2/SRPMS/unzip-5.50-4.2mdk.src.rpm

Mandrake Linux 9.0:
eb83a1f819f0407da2a6abe8f9470e6d 9.0/RPMS/unzip-5.50-4.2mdk.i586.rpm
ece7c5edb30cb80c00e902a61126e68d 9.0/SRPMS/unzip-5.50-4.2mdk.src.rpm

Mandrake Linux 9.1:
32f6a6726eb9cfe5d76aec74a71228d1 9.1/RPMS/unzip-5.50-4.2mdk.i586.rpm
ece7c5edb30cb80c00e902a61126e68d 9.1/SRPMS/unzip-5.50-4.2mdk.src.rpm

Mandrake Linux 9.1/PPC:
c4cc4eb7e92026ce5264daa57a42ce98 ppc/9.1/RPMS/unzip-5.50-4.2mdk.ppc.rpm
ece7c5edb30cb80c00e902a61126e68d ppc/9.1/SRPMS/unzip-5.50-4.2mdk.src.rpm

Multi Network Firewall 8.2:
da00ebf987ca4200ce2ed926bf4adaeb mnf8.2/RPMS/unzip-5.50-4.2mdk.i586.rpm
ece7c5edb30cb80c00e902a61126e68d mnf8.2/SRPMS/unzip-5.50-4.2mdk.src.rpm
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Bug IDs fixed (see https://qa.mandrakesoft.com for more information):
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To upgrade automatically, use MandrakeUpdate or urpmi. The verification
of md5 checksums and GPG signatures is performed automatically for you.

A list of FTP mirrors can be obtained from:

http://www.mandrakesecure.net/en/ftp.php

All packages are signed by MandrakeSoft for security. You can obtain
the GPG public key of the Mandrake Linux Security Team by executing:

gpg --recv-keys --keyserver www.mandrakesecure.net 0x22458A98

Please be aware that sometimes it takes the mirrors a few hours to
update.

You can view other update advisories for Mandrake Linux at:

http://www.mandrakesecure.net/en/advisories/

MandrakeSoft has several security-related mailing list services that
anyone can subscribe to. Information on these lists can be obtained by
visiting:

http://www.mandrakesecure.net/en/mlist.php

If you want to report vulnerabilities, please contact

security_linux-mandrake.com

Type Bits/KeyID Date User ID
pub 1024D/22458A98 2000-07-10 Linux Mandrake Security Team
<security linux-mandrake.com>
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