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[ GLSA 200410-02 ] Netpbm: Multiple temporary file issues
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GLSA
Bodhisattva
Bodhisattva


Joined: 25 Feb 2003
Posts: 3827
Location: Essen, Germany

PostPosted: Mon Oct 04, 2004 5:50 pm    Post subject: [ GLSA 200410-02 ] Netpbm: Multiple temporary file issues Reply with quote

Gentoo Linux Security Advisory

Title: Netpbm: Multiple temporary file issues (GLSA 200410-02)
Severity: normal
Exploitable: local
Date: October 04, 2004
Bug(s): #65647
ID: 200410-02

Synopsis

Utilities included in old Netpbm versions are vulnerable to multiple temporary files issues, potentially allowing a local attacker to overwrite files with the rights of the user running the utility.

Background

Netpbm is a toolkit containing more than 200 separate utilities for manipulation and conversion of graphic images.

Affected Packages

Package: media-libs/netpbm
Vulnerable: <= 9.12-r4
Unaffected: >= 10.0
Architectures: All supported architectures


Description

Utilities contained in the Netpbm package prior to the 9.25 version contain defects in temporary file handling. They create temporary files with predictable names without checking first that the target file doesn't already exist.

Impact

A local attacker could create symbolic links in the temporary files directory, pointing to a valid file somewhere on the filesystem. When a user or a tool calls one of the affected utilities, this would result in file overwriting with the rights of the user running the utility.

Workaround

There is no known workaround at this time.

Resolution

All Netpbm users should upgrade to an unaffected version:
Code:
# emerge sync
# emerge -pv ">=media-libs/netpbm-10.0"
# emerge ">=media-libs/netpbm-10.0"


References

CVE-2003-0924
US-CERT VU#487102


Last edited by GLSA on Sun May 07, 2006 4:52 pm; edited 1 time in total
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