| <?xml version="1.0" encoding="utf-8"?> |
| <!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd"> |
| |
| <glsa id="200712-03"> |
| <title>GNU Emacs: Multiple vulnerabilities</title> |
| <synopsis> |
| Two vulnerabilities were found in GNU Emacs possibly leading to the |
| execution of arbitrary code. |
| </synopsis> |
| <product type="ebuild">emacs</product> |
| <announced>December 09, 2007</announced> |
| <revised>December 09, 2007: 01</revised> |
| <bug>197958</bug> |
| <bug>200297</bug> |
| <access>remote</access> |
| <affected> |
| <package name="app-editors/emacs" auto="yes" arch="*"> |
| <unaffected range="ge">22.1-r3</unaffected> |
| <unaffected range="rge">21.4-r14</unaffected> |
| <unaffected range="lt">19</unaffected> |
| <vulnerable range="lt">22.1-r3</vulnerable> |
| </package> |
| </affected> |
| <background> |
| <p> |
| GNU Emacs is a highly extensible and customizable text editor. |
| </p> |
| </background> |
| <description> |
| <p> |
| Drake Wilson reported that the hack-local-variables() function in GNU |
| Emacs 22 does not properly match assignments of local variables in a |
| file against a list of unsafe or risky variables, allowing to override |
| them (CVE-2007-5795). Andreas Schwab (SUSE) discovered a stack-based |
| buffer overflow in the format function when handling values with high |
| precision (CVE-2007-6109). |
| </p> |
| </description> |
| <impact type="normal"> |
| <p> |
| Remote attackers could entice a user to open a specially crafted file |
| in GNU Emacs, possibly leading to the execution of arbitrary Emacs Lisp |
| code (via CVE-2007-5795) or arbitrary code (via CVE-2007-6109) with the |
| privileges of the user running GNU Emacs. |
| </p> |
| </impact> |
| <workaround> |
| <p> |
| The first vulnerability can be worked around by setting the |
| "enable-local-variables" option to "nil", disabling the processing of |
| local variable lists. GNU Emacs prior to version 22 is not affected by |
| this vulnerability. There is no known workaround for the second |
| vulnerability at this time. |
| </p> |
| </workaround> |
| <resolution> |
| <p> |
| All GNU Emacs users should upgrade to the latest version: |
| </p> |
| <code> |
| # emerge --sync |
| # emerge --ask --oneshot --verbose ">=app-editors/emacs-22.1-r3"</code> |
| </resolution> |
| <references> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5795">CVE-2007-5795</uri> |
| <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6109">CVE-2007-6109</uri> |
| </references> |
| <metadata tag="requester" timestamp="Tue, 20 Nov 2007 22:12:50 +0000"> |
| p-y |
| </metadata> |
| <metadata tag="submitter" timestamp="Wed, 05 Dec 2007 01:01:27 +0000"> |
| rbu |
| </metadata> |
| <metadata tag="bugReady" timestamp="Fri, 07 Dec 2007 13:59:32 +0000"> |
| rbu |
| </metadata> |
| </glsa> |