Race condition in GNU nano before 2.2.4, when run by root to edit a file that is not owned by root, allows local user-assisted attackers to change the ownership of arbitrary files via vectors related to the creation of backup files.
CVSS Severity (version 2.0):
Impact Subscore: 6.4
Exploitability Subscore: 1.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: High
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service
Official Statement from Red Hat (04/16/2010)
Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=CVE-2010-1161
The Red Hat Security Response Team has rated this issue as having low security impact, a future update may address this flaw.
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[oss-security] 20100414 CVE request: GNU nano (minor)
[Nano-devel] 20100407 New prerelease for security tweaks