The remote host is missing an update to mozilla-thunderbird announced via advisory DSA 1159-2. The latest security updates of Mozilla Thunderbird introduced a regression that led to a disfunctional attachment panel which warrants a correction to fix this issue. For reference please find below the original advisory text: Several security related problems have been discovered in Mozilla and derived products such as Mozilla Thunderbird. The Common Vulnerabilities and Exposures project identifies the following vulnerabilities: CVE-2006-2779 Mozilla team members discovered several crashes during testing of the browser engine showing evidence of memory corruption which may also lead to the execution of arbitrary code. The last bit of this problem will be corrected with the next update. You can prevent any trouble by disabling Javascript. [MFSA-2006-32] CVE-2006-3805 The Javascript engine might allow remote attackers to execute arbitrary code. [MFSA-2006-50] CVE-2006-3806 Multiple integer overflows in the Javascript engine might allow remote attackers to execute arbitrary code. [MFSA-2006-50] CVE-2006-3807 Specially crafted Javascript allows remote attackers to execute arbitrary code. [MFSA-2006-51] CVE-2006-3808 Remote AutoConfig (PAC) servers could execute code with elevated privileges via a specially crafted PAC script. [MFSA-2006-52] CVE-2006-3809 Scripts with the UniversalBrowserRead privilege could gain UniversalXPConnect privileges and possibly execute code or obtain sensitive data. [MFSA-2006-53] CVE-2006-3810 A cross-site scripting vulnerability allows remote attackers to inject arbitrary web script or HTML. [MFSA-2006-54]

For the stable distribution (sarge) these problems have been fixed in version 1.0.2-2.sarge1.0.8b.2. For the unstable distribution (sid) these problems have been fixed in version 1.5.0.5-1. We recommend that you upgrade your mozilla-thunderbird package. https://secure1.securityspace.com/smysecure/catid.html?in=DSA%201159-2