GLSA 200801-01: unp: Arbitrary command execution
| Severity: | normal |
| Title: | unp: Arbitrary command execution |
| Date: | 01/09/2008 |
| Bugs: | |
| ID: | 200801-01 |
Synopsis
unp allows execution of arbitrary code via malicious file names.Background
unp is a script for unpacking various file formats.
Affected packages
| Package | Vulnerable | Unaffected | Architecture(s) |
|---|---|---|---|
| app-arch/unp | < 1.0.14 | >= 1.0.14 | All supported architectures |
Description
Erich Schubert from Debian discovered that unp does not escape file names properly before passing them to calls of the shell.
Impact
A remote attacker could entice a user or automated system to unpack a compressed archive with a specially crafted file name, leading to the execution of shell commands from within the filename. That code will be executed with the privileges of the user running unp.
Workaround
There is no known workaround at this time.
Resolution
All unp users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/unp-1.0.14"
References
Availability
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
Concerns?
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License
Copyright 2010 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.