gzip -N command directory traversal

gzip-n-directory-traversal (20199) The risk level is classified as MediumMedium Risk

Description:

gzip (GNU zip) could allow a remote attacker to traverse directories on system. If an attacker could persuade a user to open a malicious compressed file using the 'gunzip -N' command, the attacker could traverse directories and create or overwrite files on the system with the privileges of the victim.

Platforms Affected:

  • Canonical, Ubuntu 4.10
  • Canonical, Ubuntu 5.04
  • Conectiva, Linux 10
  • Conectiva, Linux 9.0
  • Debian, Debian Linux 3.0
  • Debian, Debian Linux 3.1
  • Gentoo, Linux
  • GNU, gzip 1.2.4
  • GNU, gzip 1.2.4a
  • GNU, gzip 1.3
  • GNU, gzip 1.3.3
  • MandrakeSoft, Mandrake Linux 10.0
  • MandrakeSoft, Mandrake Linux 10.0 AMD64
  • MandrakeSoft, Mandrake Linux 10.1
  • MandrakeSoft, Mandrake Linux 10.1 X86_64
  • MandrakeSoft, Mandrake Linux LE2005 X86_64
  • MandrakeSoft, Mandrake Linux LE2005
  • MandrakeSoft, Mandrake Linux Corporate Server 2.1
  • MandrakeSoft, Mandrake Linux Corporate Server 2.1 X86_64
  • MandrakeSoft, Mandrake Linux Corporate Server 3.0
  • MandrakeSoft, Mandrake Linux Corporate Server 3.0 X86_64
  • OpenPKG, OpenPKG 2.2
  • OpenPKG, OpenPKG 2.3
  • OpenPKG, OpenPKG CURRENT
  • RedHat, Enterprise Linux 2.1 ES
  • RedHat, Enterprise Linux 2.1 WS
  • RedHat, Enterprise Linux 2.1 AS
  • RedHat, Enterprise Linux 3 ES
  • RedHat, Enterprise Linux 3 WS
  • RedHat, Enterprise Linux 3 AS
  • RedHat, Enterprise Linux 3 Desktop
  • RedHat, Enterprise Linux 4 WS
  • RedHat, Enterprise Linux 4 Desktop
  • RedHat, Enterprise Linux 4 AS
  • RedHat, Enterprise Linux 4 ES
  • RedHat, Linux Advanced Workstation 2.1 Itanium
  • Sun, Solaris 10 SPARC
  • Sun, Solaris 10 x86
  • Sun, Solaris 8 x86
  • Sun, Solaris 8 SPARC
  • Sun, Solaris 9 SPARC
  • Sun, Solaris 9 x86
  • Turbolinux, Turbolinux 10 Desktop
  • Turbolinux, Turbolinux 10 F...
  • Turbolinux, Turbolinux 10 Server
  • Turbolinux, Turbolinux 7 Server
  • Turbolinux, Turbolinux 7 Workstation
  • Turbolinux, Turbolinux 8 Server
  • Turbolinux, Turbolinux 8 Workstation
  • Turbolinux, Turbolinux Home
  • Turbolinux, Turbolinux Appliance Server 1.0 Hosting Ed
  • Turbolinux, Turbolinux Appliance Server 1.0 Workgroup Ed

Remedy:

Apply the patch for this vulnerability, available from the Debian Bug report 305255. See References.

For Debian GNU/Linux 3.1 (Sarge):
Upgrade to the latest version of gzip (1.3.5-10 or later), as listed in DSA-752-1. See References.

For Conectiva Linux:
Upgrade to the latest version of gzip, as listed below. Refer to Conectiva Linux Announcement CLSA-2005:974 for more information. See References.

Conectiva Linux: 10.0: 1.3.5 or later
Conectiva Linux: 9.0: 1.3.3 or later

For Red Hat Linux:
Refer to RHSA-2005:357-19 for patch, upgrade, or suggested workaround information. See References.

For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 2005-05-05 for patch, upgrade, or suggested workaround information. See References.

For OpenPKG:
Refer to OpenPKG Security Advisory OpenPKG-SA-2005.009 for patch, upgrade, or suggested workaround information. See References.

For Ubuntu Linux:
Refer to USN-116-1 for patch, upgrade, or suggested workaround information. See References.

For Apple Mac OS X:
Apply Apple Security Update 2006-004, available from the Apple Web site. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

Consequences:

File Manipulation

References:

Reported:

Apr 20, 2005

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