NX Server Free Edition, NX Node: Privilege escalation — GLSA 201201-07

An unspecified vulnerability in NX Server Free Edition and NX Node could allow local attackers to gain root privileges.

Affected packages

Package	net-misc/nxserver-freeedition on all architectures
Affected versions	< 3.5.0.5
Unaffected versions	>= 3.5.0.5

Package	net-misc/nxnode on all architectures
Affected versions	< 3.5.0.4
Unaffected versions	>= 3.5.0.4

Background

NX Server Free Edition is a remote display technology by No Machine. NX Node provides the shared components for NX Server.

Description

NX Server Free Edition and NX Node use nxconfigure.sh, a setuid script containing an unspecified vulnerability.

Impact

A local attacker could gain escalated privileges.

Workaround

There is no known workaround at this time.

Resolution

All NX Server Free Edition users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose
 ">=net-misc/nxserver-freeedition-3.5.0.5"

All NX Node users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=net-misc/nxnode-3.5.0.4"

NOTE: This is a legacy GLSA. Updates for all affected architectures are available since August 23, 2011. It is likely that your system is already no longer affected by this issue.

References

CVE-2011-3977

Release date
January 23, 2012

Latest revision
January 23, 2012: 1

Severity
high

Exploitable
local

Bugzilla entries

378345