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[ GLSA 200801-06 ] Xfce: Multiple vulnerabilities
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GLSA
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PostPosted: Thu Jan 10, 2008 1:26 am    Post subject: [ GLSA 200801-06 ] Xfce: Multiple vulnerabilities Reply with quote

Gentoo Linux Security Advisory

Title: Xfce: Multiple vulnerabilities (GLSA 200801-06)
Severity: normal
Exploitable: remote
Date: January 09, 2008
Updated: January 10, 2008
Bug(s): #201292, #201293
ID: 200801-06

Synopsis

Multiple vulnerabilities in Xfce might allow user-assisted attackers to execute arbitrary code.

Background

Xfce is a GTK+ 2 based desktop environment that allows to run a modern desktop environment on modest hardware.

Affected Packages

Package: xfce-base/xfce4-panel
Vulnerable: < 4.4.2
Unaffected: >= 4.4.2
Architectures: All supported architectures

Package: xfce-base/libxfcegui4
Vulnerable: < 4.4.2
Unaffected: >= 4.4.2
Architectures: All supported architectures


Description

Gregory Andersen reported that the Xfce4 panel does not correctly calculate memory boundaries, leading to a stack-based buffer overflow in the launcher_update_panel_entry() function (CVE-2007-6531). Daichi Kawahata reported libxfcegui4 did not copy provided values when creating "SessionClient" structs, possibly leading to access of freed memory areas (CVE-2007-6532).

Impact

A remote attacker could entice a user to install a specially crafted "rc" file to execute arbitrary code via long strings in the "Name" and "Comment" fields or via unspecified vectors involving the second vulnerability.

Workaround

There is no known workaround at this time.

Resolution

All Xfce4 panel users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=xfce-base/xfce4-panel-4.4.2"
All libxfcegui4 users should upgrade to the latest version:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose ">=xfce-base/libxfcegui4-4.4.2"


References

CVE-2007-6531
CVE-2007-6532


Last edited by GLSA on Fri Jan 11, 2008 4:18 am; edited 1 time in total
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