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             AUSCERT External Security Bulletin Redistribution

                  ClamAV 0.102.2 security patch released
                              7 February 2020


        AusCERT Security Bulletin Summary

Product:           ClamAV
Publisher:         ClamAV
Operating System:  Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Denial of Service -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-3123  

Original Bulletin: 

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than ClamAV. It is recommended that administrators 
         running ClamAV check for an updated version of the software for 
         their operating system.

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Wednesday, February 5, 2020

ClamAV 0.102.2 security patch released

Today, we're publishing 0.102.2. Navigate to ClamAV's downloads page to
download the release materials.

ClamAV 0.102.2 is a security patch release to address the following issues.

  o CVE-2020-3123: A denial-of-service (DoS) condition may occur when using the
    optional credit card data-loss-prevention (DLP) feature. Improper bounds
    checking of an unsigned variable resulted in an out-of-bounds read, which
    causes a crash.
  o Significantly improved the scan speed of PDF files on Windows.
  o Re-applied a fix to alleviate file access issues when scanning RAR files in
    downstream projects that use libclamav where the scanning engine is
    operating in a low-privilege process. This bug was originally fixed in
    0.101.2 and the fix was mistakenly omitted from 0.102.0.
  o Fixed an issue where freshclam failed to update if the database version
    downloaded is one version older than advertised. This situation may occur
    after a new database version is published. The issue affected users
    downloading the whole CVD database file.
  o Changed the default freshclam ReceiveTimeout setting to 0 (infinite). The
    ReceiveTimeout had caused needless database update failures for users with
    slower internet connections.
  o Correctly display the number of kilobytes (KiB) in progress bar and reduced
    the size of the progress bar to accommodate 80-character width terminals.
  o Fixed an issue where running freshclam manually causes a daemonized
    freshclam process to fail when it updates because the manual instance
    deletes the temporary download directory. The freshclam temporary files
    will now download to a unique directory created at the time of an update
    instead of using a hardcoded directory created/destroyed at the program
  o Fix for freshclam's OnOutdatedExecute config option.
  o Fixes a memory leak in the error condition handling for the email parser.
  o Improved bound checking and error handling in ARJ archive parser.
  o Improved error handling in PDF parser.
  o Fix for memory leak in byte-compare signature handler.
  o Updates to the unit test suite to support libcheck 0.13.
  o Updates to support autoconf 2.69 and automake 1.15.

Special thanks to the following people for code contributions and bug reports:

  o     Antoine Deschenes
  o     Eric Lindblad
  o     Gianluigi Tiesi
  o     Tuomo Soini

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