GLSA Advocate
Joined: 12 May 2004 Posts: 2663
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Posted: Mon May 09, 2005 7:51 pm Post subject: [ GLSA 200505-05 ] gzip: Multiple vulnerabilities |
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Gentoo Linux Security Advisory
Title: gzip: Multiple vulnerabilities (GLSA 200505-05)
Severity: normal
Exploitable: local
Date: May 09, 2005
Bug(s): #89946, #90626
ID: 200505-05
Synopsis
gzip contains multiple vulnerabilities potentially allowing an attacker to
execute arbitrary commands.
Background
gzip (GNU zip) is a popular compression program. The included
zgrep utility allows you to grep gzipped files in place.
Affected Packages
Package: app-arch/gzip
Vulnerable: < 1.3.5-r6
Unaffected: >= 1.3.5-r6
Architectures: All supported architectures
Description
The gzip and gunzip programs are vulnerable to a race condition
when setting file permissions (CAN-2005-0988), as well as improper
handling of filename restoration (CAN-2005-1228). The zgrep utility
improperly sanitizes arguments, which may come from an untrusted source
(CAN-2005-0758).
Impact
These vulnerabilities could allow arbitrary command execution,
changing the permissions of arbitrary files, and installation of files
to an aribitrary location in the filesystem.
Workaround
There is no known workaround at this time.
Resolution
All gzip users should upgrade to the latest stable version:
Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=app-arch/gzip-1.3.5-r6" |
References
CAN-2005-0758
CAN-2005-0988
CAN-2005-1228
Last edited by GLSA on Mon Aug 19, 2013 4:19 am; edited 3 times in total |
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