GLSA 200505-18: Net-SNMP: fixproc insecure temporary file creation

http://security.gentoo.org/

Severity:	normal
Title:	Net-SNMP: fixproc insecure temporary file creation
Date:	05/23/2005
Bugs:	#91792
ID:	200505-18

Synopsis

Net-SNMP creates temporary files in an insecure manner, possibly allowing the execution of arbitrary code.

Background

Net-SNMP is a suite of applications used to implement the Simple Network Management Protocol.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-analyzer/net-snmp	< 5.2.1-r1	>= 5.2.1-r1	All supported architectures

Description

The fixproc application of Net-SNMP creates temporary files with predictable filenames.

Impact

A malicious local attacker could exploit a race condition to change the content of the temporary files before they are executed by fixproc, possibly leading to the execution of arbitrary code. A local attacker could also create symbolic links in the temporary files directory, pointing to a valid file somewhere on the filesystem. When fixproc is executed, this would result in the file being overwritten.

Workaround

There is no known workaround at this time.

Resolution

All Net-SNMP users should upgrade to the latest available version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=net-analyzer/net-snmp-5.2.1-r1"

References

CVE-2005-1740

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200505-18.xml

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.