teximg security problem

[ikiwiki.git] / doc / security.mdwn

diff --git a/doc/security.mdwn b/doc/security.mdwn
index b067a8a16c6d2ca67b088db24fa1cb876186d2ff..ba3eac1874ccc7a151205e947aed1185932288ee 100644 (file)
--- a/doc/security.mdwn
+++ b/doc/security.mdwn
@@ -416,4 +416,14 @@ attack.
 
 intrigeri discovered this problem on 12 Nov 2008 and a patch put in place
 later that day, in version 2.70. The fix was backported to testing as version
-2.53.2, and to stable as version 1.33.7.
+2.53.3, and to stable as version 1.33.7.
+
+## Insufficient blacklisting in teximg plugin
+
+Josh Tripplet discovered on 28 Aug 2009 that the teximg plugin's
+blacklisting of insecure TeX commands was insufficient; it could be
+bypassed and used to read arbitrary files. This was fixed by
+enabling TeX configuration options that disallow unsafe TeX commands.
+The fix was released on 30 Aug 2009 in version 3.1415926, and was
+backported to stable in version 2.53.4. If you use the teximg plugin,
+I recommend upgrading.