sandbox: Insecure temporary file handling

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200507-22 / sandbox
Release Date	July 25, 2005
Latest Revision	August 11, 2005: 02
Impact	low
Exploitable	local

Package	Vulnerable versions	Unaffected versions	Architecture(s)
sys-apps/sandbox	< 1.2.11	>= 1.2.11	All supported architectures

Related bugreports: #96782

Synopsis

The sandbox utility may create temporary files in an insecure manner.

2. Impact Information

Background

sandbox is a Gentoo Linux utility used by the Portage package management system.

Description

The Gentoo Linux Security Audit Team discovered that the sandbox utility was vulnerable to multiple TOCTOU (Time of Check, Time of Use) file creation race conditions.

Impact

Local users may be able to create or overwrite arbitrary files with the permissions of the root user.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All sandbox users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/sandbox-1.2.11"

4. References

CAN-2005-2449

Page updated July 25, 2005

Summary: This is a Gentoo Linux Security Advisory

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