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             AUSCERT External Security Bulletin Redistribution

                               ESB-2022.6265
                     USN-5743-2: LibTIFF vulnerability
                              2 December 2022

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           LibTIFF
Publisher:         Ubuntu
Operating System:  Ubuntu
Resolution:        Patch/Upgrade
CVE Names:         CVE-2022-3970  

Original Bulletin: 
   https://ubuntu.com/security/notices/USN-5743-2

Comment: CVSS (Max):  9.8 CVE-2022-3970 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
         CVSS Source: NVD
         Calculator:  https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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USN-5743-2: LibTIFF vulnerability
1 December 2022

LibTIFF could be made to crash or run programs as your login if it
opened a specially crafted file.
Releases

  o Ubuntu 22.10
  o Ubuntu 22.04 LTS
  o Ubuntu 20.04 LTS
  o Ubuntu 18.04 LTS

Packages

  o tiff - Tag Image File Format (TIFF) library

Details

USN-5743-1 fixed a vulnerability in LibTIFF. This update provides the
corresponding updates for Ubuntu 18.04 LTS, Ubuntu 20.04 LTS,
Ubuntu 22.04 LTS and Ubuntu 22.10.

Original advisory details:

It was discovered that LibTIFF incorrectly handled certain malformed
images. If a user or automated system were tricked into opening a specially
crafted image, a remote attacker could crash the application, leading to a
denial of service, or possibly execute arbitrary code with user privileges.

Update instructions

The problem can be corrected by updating your system to the following package
versions:

Ubuntu 22.10

  o libtiff-tools - 4.4.0-4ubuntu3.2
  o libtiff5 - 4.4.0-4ubuntu3.2

Ubuntu 22.04

  o libtiff-tools - 4.3.0-6ubuntu0.3
  o libtiff5 - 4.3.0-6ubuntu0.3

Ubuntu 20.04

  o libtiff-tools - 4.1.0+git191117-2ubuntu0.20.04.7
  o libtiff5 - 4.1.0+git191117-2ubuntu0.20.04.7

Ubuntu 18.04

  o libtiff-tools - 4.0.9-5ubuntu0.9
  o libtiff5 - 4.0.9-5ubuntu0.9

In general, a standard system update will make all the necessary changes.

References

  o CVE-2022-3970

Related notices

  o USN-5743-1 : libtiffxx5, libtiff5, libtiff-doc, tiff, libtiff5-dev,
    libtiff-tools, libtiff-opengl

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