Package: python3.4 Version: 3.4.2-1+deb8u3 Followup-For: Bug #931044 The following fix could be applied to the faulty Python standard library file ultimately used by the /var/lib/dpkg/info/python3.4.postinst script:
--- /usr/lib/python3.4/http/client.py 2019-06-25 14:41:35.000000000 +0200 +++ /usr/lib/python3.4/http/client.py 2019-06-25 14:41:55.000000000 +0200 @@ -1011,8 +1011,9 @@ # Prevent CVE-2019-9740. match = _contains_disallowed_url_pchar_re.search(url) if match: - raise InvalidURL(f"URL can't contain control characters. {url!r} " - f"(found at least {match.group()!r})") + raise InvalidURL("URL can't contain control characters. {url!r} " + "(found at least {group!r})" + .format(url=url, group=match.group())) request = '%s %s %s' % (method, url, self._http_vsn_str) # Non-ASCII characters should have been eliminated earlier Sorry to provide this patch inline, but I am using the textual bug reporting interface! I imagine that this regression has occurred because someone has applied the noted vulnerability countermeasure without backporting it to the syntax understood by Python 3.5 or earlier. I hope this helps others experiencing the same problem. Paul -- System Information: Debian Release: 8.11 APT prefers oldstable APT policy: (500, 'oldstable') Architecture: i386 (i686) Kernel: Linux 3.16.0-9-586 Locale: LANG=en_GB.ISO-8859-15, LC_CTYPE=en_GB.ISO-8859-15 (charmap=ISO-8859-15) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages python3.4 depends on: ii libpython3.4-stdlib 3.4.2-1+deb8u3 ii mime-support 3.58 ii python3.4-minimal 3.4.2-1+deb8u3 python3.4 recommends no packages. Versions of packages python3.4 suggests: ii binutils 2.25-5+deb8u1 pn python3.4-doc <none> pn python3.4-venv <none> -- no debconf information