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Family: Gentoo Local Security Checks --> Category: infos
[GLSA-200512-18] XnView: Privilege escalation Vulnerability Scan
Vulnerability Scan Summary
XnView: Privilege escalation
Detailed Explanation for this Vulnerability Test
The remote host is affected by the vulnerability described in GLSA-200512-18
(XnView: Privilege escalation)
Krzysiek Pawlik of Gentoo Linux discovered that the XnView package
for IA32 used the DT_RPATH field insecurely, causing the dynamic loader
to search for shared libraries in potentially untrusted directories.
Impact
A local attacker could create a malicious shared object that would
be loaded and executed when a user attempted to use an XnView utility.
This would allow a malicious user to effectively hijack XnView and
execute arbitrary code with the rights of the user running the
program.
Workaround
The system administrator may use the chrpath utility to remove the
DT_RPATH field from the XnView utilities:
# emerge app-admin/chrpath
# chrpath --delete /opt/bin/nconvert /opt/bin/nview /opt/bin/xnview
Solution:
All XnView users on the x86 platform should upgrade to the latest
version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=x11-misc/xnview-1.70-r1"
Threat Level: Medium
Click HERE for more information and discussions on this network vulnerability scan.
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