Package: libstrongswan,strongswan
Version: libstrongswan/4.6.4-4
Version: strongswan/4.6.4-4
Severity: serious
User: trei...@debian.org
Usertags: edos-file-overwrite

Date: 2012-07-02
Architecture: amd64
Distribution: sid

Hi,

automatic installation tests of packages that share a file and at the
same time do not conflict by their package dependency relationships has
detected the following problem:


WARNING: The following packages cannot be authenticated!
  libcap2 libkeyutils1 libkrb5support0 libk5crypto3 libkrb5-3 libgssapi-krb5-2
  libsasl2-2 libldap-2.4-2 librtmp0 libssh2-1 libcurl3 libgmp10 libfcgi0ldbl
  openssl libstrongswan ipsec-tools libgeoip1 libisc83 libdns81 libisccc80
  libisccfg82 libbind9-80 liblwres80 bind9-host host strongswan-ikev2
  strongswan-starter strongswan-ikev1 strongswan
Preconfiguring packages ...
Authentication warning overridden.
Can not write log, openpty() failed (/dev/pts not mounted?)
Selecting previously unselected package libcap2:amd64.
(Reading database ... 10720 files and directories currently installed.)
Unpacking libcap2:amd64 (from .../libcap2_1%3a2.22-1.1_amd64.deb) ...
Selecting previously unselected package libkeyutils1:amd64.
Unpacking libkeyutils1:amd64 (from .../libkeyutils1_1.5.5-3_amd64.deb) ...
Selecting previously unselected package libkrb5support0:amd64.
Unpacking libkrb5support0:amd64 (from 
.../libkrb5support0_1.10.1+dfsg-1_amd64.deb) ...
Selecting previously unselected package libk5crypto3:amd64.
Unpacking libk5crypto3:amd64 (from .../libk5crypto3_1.10.1+dfsg-1_amd64.deb) ...
Selecting previously unselected package libkrb5-3:amd64.
Unpacking libkrb5-3:amd64 (from .../libkrb5-3_1.10.1+dfsg-1_amd64.deb) ...
Selecting previously unselected package libgssapi-krb5-2:amd64.
Unpacking libgssapi-krb5-2:amd64 (from 
.../libgssapi-krb5-2_1.10.1+dfsg-1_amd64.deb) ...
Selecting previously unselected package libsasl2-2:amd64.
Unpacking libsasl2-2:amd64 (from .../libsasl2-2_2.1.25.dfsg1-4+b1_amd64.deb) ...
Selecting previously unselected package libldap-2.4-2:amd64.
Unpacking libldap-2.4-2:amd64 (from .../libldap-2.4-2_2.4.31-1_amd64.deb) ...
Selecting previously unselected package librtmp0:amd64.
Unpacking librtmp0:amd64 (from 
.../librtmp0_2.4+20111222.git4e06e21-1_amd64.deb) ...
Selecting previously unselected package libssh2-1:amd64.
Unpacking libssh2-1:amd64 (from .../libssh2-1_1.4.2-1_amd64.deb) ...
Selecting previously unselected package libcurl3:amd64.
Unpacking libcurl3:amd64 (from .../libcurl3_7.26.0-1_amd64.deb) ...
Selecting previously unselected package libgmp10:amd64.
Unpacking libgmp10:amd64 (from .../libgmp10_2%3a5.0.5+dfsg-2_amd64.deb) ...
Selecting previously unselected package libfcgi0ldbl.
Unpacking libfcgi0ldbl (from .../libfcgi0ldbl_2.4.0-8.1_amd64.deb) ...
Selecting previously unselected package openssl.
Unpacking openssl (from .../openssl_1.0.1c-3_amd64.deb) ...
Selecting previously unselected package libstrongswan.
Unpacking libstrongswan (from .../libstrongswan_4.6.4-4_amd64.deb) ...
Selecting previously unselected package ipsec-tools.
Unpacking ipsec-tools (from .../ipsec-tools_1%3a0.8.0-13_amd64.deb) ...
Selecting previously unselected package libgeoip1.
Unpacking libgeoip1 (from .../libgeoip1_1.4.8+dfsg-3_amd64.deb) ...
Selecting previously unselected package libisc83.
Unpacking libisc83 (from .../libisc83_1%3a9.8.1.dfsg.P1-4.1_amd64.deb) ...
Selecting previously unselected package libdns81.
Unpacking libdns81 (from .../libdns81_1%3a9.8.1.dfsg.P1-4.1_amd64.deb) ...
Selecting previously unselected package libisccc80.
Unpacking libisccc80 (from .../libisccc80_1%3a9.8.1.dfsg.P1-4.1_amd64.deb) ...
Selecting previously unselected package libisccfg82.
Unpacking libisccfg82 (from .../libisccfg82_1%3a9.8.1.dfsg.P1-4.1_amd64.deb) ...
Selecting previously unselected package libbind9-80.
Unpacking libbind9-80 (from .../libbind9-80_1%3a9.8.1.dfsg.P1-4.1_amd64.deb) ...
Selecting previously unselected package liblwres80.
Unpacking liblwres80 (from .../liblwres80_1%3a9.8.1.dfsg.P1-4.1_amd64.deb) ...
Selecting previously unselected package bind9-host.
Unpacking bind9-host (from .../bind9-host_1%3a9.8.1.dfsg.P1-4.1_amd64.deb) ...
Selecting previously unselected package host.
Unpacking host (from .../host_1%3a9.8.1.dfsg.P1-4.1_all.deb) ...
Selecting previously unselected package strongswan-ikev2.
Unpacking strongswan-ikev2 (from .../strongswan-ikev2_4.6.4-4_amd64.deb) ...
Selecting previously unselected package strongswan-starter.
Unpacking strongswan-starter (from .../strongswan-starter_4.6.4-4_amd64.deb) ...
Selecting previously unselected package strongswan-ikev1.
Unpacking strongswan-ikev1 (from .../strongswan-ikev1_4.6.4-4_amd64.deb) ...
Selecting previously unselected package strongswan.
Unpacking strongswan (from .../strongswan_4.6.4-4_all.deb) ...
dpkg: error processing /var/cache/apt/archives/strongswan_4.6.4-4_all.deb 
(--unpack):
 trying to overwrite '/etc/logcheck/ignore.d.server/strongswan', which is also 
in package libstrongswan 4.6.4-4
Processing triggers for man-db ...
Errors were encountered while processing:
 /var/cache/apt/archives/strongswan_4.6.4-4_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)


This is a serious bug as it makes installation fail, and violates
sections 7.6.1 and 10.1 of the policy. An optimal solution would
consist in only one of the packages installing that file, and renaming
or removing the file in the other package. Depending on the
circumstances you might also consider Replace relations or file
diversions. If the conflicting situation cannot be resolved then, as a
last resort, the two packages have to declare a mutual
Conflict. Please take into account that Replaces, Conflicts and
diversions should only be used when packages provide different
implementations for the same functionality.

Here is a list of files that are known to be shared by both packages
(according to the Contents file for sid/amd64, which may be
slightly out of sync):

  /etc/logcheck/ignore.d.paranoid/strongswan
  /etc/logcheck/ignore.d.server/strongswan
  /etc/logcheck/violations.ignore.d/strongswan

This bug has been filed against both packages. If you, the maintainers of
the two packages in question, have agreed on which of the packages will
resolve the problem please reassign the bug to that package. You may then
also register in the BTS that the other package is affected by the bug.

-Ralf.

PS: for more information about the detection of file overwrite errors
of this kind see http://edos.debian.net/file-overwrites/.



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