Log Message:
archivers/rar: update to 6.23

# changes (since release 6.20)

   Version 6.23

   1. Bugs fixed:

      a) a security issue involving out of bounds write is fixed
         in RAR4 recovery volumes processing code.

         We are thankful to goodbyeselene working with Trend Micro Zero Day
         Initiative for letting us know about this bug.

   Version 6.22

   1. Bugs fixed:

      a) extracting individual files from solid archives created by
         RAR versions older than 2.0, could fail in RAR 6.20 and 6.21.
         It didn't affect extracting the entire archive, which was performed
         correctly.

   Version 6.21

   1. Bugs fixed:

      a) if unencrypted file was stored after encrypted in the same
         RAR archive and both files had been unpacked in the same extraction
         command, RAR 6.20 failed to unpack the unencrypted file.