ikiwiki (3.20190228-1) unstable; urgency=high
* New upstream release
- aggregate: Use LWPx::ParanoidAgent if available.
Previously blogspam, openid and pinger used this module if available,
but aggregate did not. This prevents server-side request forgery or
local file disclosure, and mitigates denial of service when slow
"tarpit" URLs are accessed.
(CVE-2019-9187)
- blogspam, openid, pinger: Use a HTTP proxy if configured, even if
LWPx::ParanoidAgent is installed.
Previously, only aggregate would obey proxy configuration. If a proxy
is used, the proxy (not ikiwiki) is responsible for preventing attacks
like CVE-2019-9187.
- aggregate, blogspam, openid, pinger: Do not access non-http, non-https
URLs.
Previously, these plugins would have allowed non-HTTP-based requests if
LWPx::ParanoidAgent was not installed. Preventing file URIs avoids local
file disclosure, and preventing other rarely-used URI schemes like
gopher mitigates request forgery attacks.
- aggregate, openid, pinger: Document LWPx::ParanoidAgent as strongly
recommended.
These plugins can request attacker-controlled URLs in some site
configurations.
- blogspam: Document LWPx::ParanoidAgent as desirable.
This plugin doesn't request attacker-controlled URLs, so it's
non-critical here.
- blogspam, openid, pinger: Consistently use cookiejar if configured.
Previously, these plugins would only obey this configuration if
LWPx::ParanoidAgent was not installed, but this appears to have been
unintended.
- po: Always filter .po files.
The po plugin in previous ikiwiki releases made the second and
subsequent filter call per (page, destpage) pair into a no-op,
apparently in an attempt to prevent *recursive* filtering (which as
far as we can tell can't happen anyway), with the undesired effect
of interpreting the raw .po file as page content (e.g. Markdown)
if it was inlined into the same page twice, which is apparently
something that tails.org does. Simplify this by deleting the code
that prevented repeated filtering. Thanks, intrigeri
(Closes: #911356)
-- Simon McVittie <email address hidden> Tue, 26 Feb 2019 23:04:42 +0000
