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             AUSCERT External Security Bulletin Redistribution

                     USN-4039-1: CImg vulnerabilities
                               27 June 2019


        AusCERT Security Bulletin Summary

Product:           CImg
Publisher:         Ubuntu
Operating System:  Ubuntu
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Execute Arbitrary Code/Commands -- Remote with User Interaction
                   Denial of Service               -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-7589 CVE-2018-7588 CVE-2018-7587

Original Bulletin: 

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

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USN-4039-1: CImg vulnerabilities
26 June 2019

CImg vulnerabilities
A security issue affects these releases of Ubuntu and its derivatives:

  o Ubuntu 18.10
  o Ubuntu 18.04 LTS


Several security issues were fixed in CImg.

Software Description

  o cimg - C++ template image processing toolkit


It was discovered that allocation failures could occur in CImg when loading
crafted bmp images. An attacker could possibly use this issue to cause a denial
of service. (CVE-2018-7587)

It was discovered that a heap-based buffer over-read existed in CImg when
loading crafted bmp images. An attacker could possibly use this issue to
execute arbitrary code. (CVE-2018-7588)

It was discovered that a double free existed in CImg when loading crafted bmp
images. An attacker could possibly use this issue to execute arbitrary code.

Update instructions

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

Ubuntu 18.10
    cimg-dev - 1.7.9+dfsg-2ubuntu0.18.10.1
Ubuntu 18.04 LTS
    cimg-dev - 1.7.9+dfsg-2ubuntu0.18.04.1

To update your system, please follow these instructions: https://
wiki.ubuntu.com/Security/Upgrades .

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


  o CVE-2018-7587
  o CVE-2018-7588
  o CVE-2018-7589

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