[Bug 2062535] Re: zip fails when filenames contain unicode characters

[Launchpad Bug Tracker]

** Merge proposal linked:
   https://code.launchpad.net/~zhsj/ubuntu/+source/zip/+git/zip/+merge/476113

** Merge proposal linked:
   https://code.launchpad.net/~zhsj/ubuntu/+source/zip/+git/zip/+merge/476114

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https://bugs.launchpad.net/bugs/2062535

Title:
  zip fails when filenames contain unicode characters

Status in zip package in Ubuntu:
  Fix Committed
Status in zip source package in Noble:
  Confirmed
Status in zip source package in Oracular:
  Confirmed
Status in zip source package in Plucky:
  Fix Committed

Bug description:
  [ Impact ]

   * zip in noble is built with _FORTIFY_SOURCE=3 and the code is bug
  with buffer overflow when filename contains non ascii characters. So
  it crashes at runtime.

  [ Test Plan ]

   * install zip from proposed
   * run following commands:
     touch ä
     zip x.zip ä
   * It shouldn't crash.

  [ Where problems could occur ]

   * The patch has been included in fedora 40 and tested there.
   * If the patch is still wrong to calculate the buffer size, zip continues to crash.

  [ Other Info ]

   * None

  [Original description]

  Steps to reproduce: command line
  $ touch ä
  $ zip x.zip ä

  will result in

  > *** buffer overflow detected ***: terminated
  >
  >
  > zip error: Interrupted (aborting)

  cf. https://bugzilla.redhat.com/show_bug.cgi?id=2165653

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: zip 3.0-13build1
  Uname: Linux 6.8.6-060806-generic x86_64
  ApportVersion: 2.28.1-0ubuntu1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: XFCE
  Date: Fri Apr 19 12:34:09 2024
  SourcePackage: zip
  UpgradeStatus: No upgrade log present (probably fresh install)

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