Package: debsecan
Version: 0.4.7
Severity: wishlist
When dealing with a suite like etch, debsecan looks for an exact version
match in a vulnerability's other_versions. This means that versions of a
package more recent than the version that fixed a vulnerability are
considered vulnerable.
For example, on an Etch box:
$ debsecan --only-fixed --format=detail --suite=etch
...
CVE-2007-1262 (fixed)
Multiple cross-site scripting (XSS) vulnerabilities in the HTML filter
...
installed: squirrelmail 2:1.4.9a-3
(built from squirrelmail 2:1.4.9a-3)
fixed in unstable: squirrelmail 2:1.4.10a-1 (source package)
fixed on branch: squirrelmail 2:1.4.4-11 (source package)
fixed on branch: squirrelmail 2:1.4.9a-2 (source package)
fix is available for the selected suite (etch)
...
I think this happens because Vulnerability.is_vulnerability returns:
src_ver not in self.other_versions
I think debsecan should extend VersionAPT to use
apt_pkg.UpstreamVersion(),
so the decision can be modified to return something like:
If the installed version is the same or greater than any of the
other_versions that have the same upstream version, then it is
not vulnerable.
I'd have to learn a bit more Python before doing this myself, so I
wanted to first get someone to sanity check my interpretation of what
debsecan is doing, and my proposed improvement.
-- System Information:
Debian Release: 4.0
APT prefers stable
APT policy: (500, 'stable')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.19.7-xenU
Locale: LANG=en_ZA.UTF-8, LC_CTYPE=en_ZA.UTF-8 (charmap=UTF-8)
Versions of packages debsecan depends on:
ii debconf [debconf-2.0] 1.5.11etch2 Debian configuration management sy
ii python 2.4.4-2 An interactive high-level object-o
ii python-apt 0.6.19 Python interface to libapt-pkg
Versions of packages debsecan recommends:
ii cron 3.0pl1-100 management of regular background p
ii exim4 4.63-17 metapackage to ease exim MTA (v4)
ii exim4-daemon-heavy [mail-tran 4.63-17 exim MTA (v4) daemon with extended
-- debconf information:
* debsecan/source:
* debsecan/mailto: root
* debsecan/report: true
* debsecan/suite: etch
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