https://bugzilla.redhat.com/show_bug.cgi?id=1029710 Bug ID: 1029710 Summary: Amavisd fails to identify attached zipped files with .exe extensions Product: Fedora EPEL Version: el6 Component: amavisd-new Severity: medium Assignee: steve@xxxxxxxxx Reporter: s10dal@xxxxxxxxxx QA Contact: extras-qa@xxxxxxxxxxxxxxxxx CC: janfrode@xxxxxxxxx, kanarip@xxxxxxxxxxx, perl-devel@xxxxxxxxxxxxxxxxxxxxxxx, steve@xxxxxxxxx Description of problem: Mail attachments containing zipped files with .exe extensions are not properly identified due to a failure of 7za (p7zip) as called by amavisd to correctly list the contents of the zipped file. Based on maillog errors, the failure appears to be due to an improperly composed 7za option, specifically -w not being separated from the target by a separator (e.g., space character). Manually executing 7za using the options noted in the maillog error (see below) demonstrates the need to insert a separator between the -w option and the target. Fails: $ 7za l -slt -w./contains_exe.zip Works: $ 7za l -slt -w ./contains_exe.zip Also, this issue may be specific to EL6. This issue came to my attention because an EL6 mail server acting as a Backup MX for an EL5 mail server was forwarding zipped exe attachments, which were correctly identified and quarantined on the EL5 system. Version-Release number of selected component (if applicable): # uname -rpmi 2.6.32-358.23.2.el6.i686 i686 i686 i386 # rpm -q amavisd-new p7zip amavisd-new-2.8.0-4.el6.noarch p7zip-9.20.1-2.el6.i686 How reproducible: Very. Observed on 3 EL6 mail servers. Steps to Reproduce: 1. Install/configure postfix, amavisd-new, clam\*, etc. 2. Create a test attachment: $ touch test.exe $ 7za a -tzip test_exe.zip test.exe 3. Send a mail with test_exe.zip attached 4. Check /var/log/maillog for the specific error Actual results: From /var/log/maillog: Nov 12 17:17:46 Mail amavis[1568]: (28807-12) (!)run_command: child process [1568]: run_command: failed to exec /usr/bin/7za l -slt -w/var/spool/amavisd/tmp/amavis-20131112T051218-28807-HPbWePoN/parts -- /var/spool/amavisd/tmp/amavis-20131112T051218-28807-HPbWePoN/parts/p002: 13 at /usr/sbin/amavisd line 4062. Nov 12 17:17:46 Mail amavis[28807]: (28807-12) (!)Decoding of p002 (Zip archive data, at least v1.0 to extract) failed, leaving it unpacked: do_7zip: can't get a list of archive members: exit 6; at (eval 117) line 781. Expected results: Identify zipped exe file as such. Additional info: It may not be relevant to the observed error, but 8 months ago, amavisd-new and clam\* were converted from RepoForge/RPMforge versions to EPEL versions. Except for a few initial hiccups, the mail servers have been running without apparent issues until the current 7za issue was observed. -- You are receiving this mail because: You are on the CC list for the bug. Unsubscribe from this bug https://bugzilla.redhat.com/token.cgi?t=KMKdGzsZdn&a=cc_unsubscribe -- Fedora Extras Perl SIG http://www.fedoraproject.org/wiki/Extras/SIGs/Perl perl-devel mailing list perl-devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/perl-devel
