Operating System:

[Ubuntu]

Published:

16 January 2019

Protect yourself against future threats.

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0142
                        libarchive vulnerabilities
                              16 January 2019

===========================================================================

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

Product:           libarchive
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Denial of Service        -- Remote with User Interaction
                   Access Confidential Data -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-1000880 CVE-2018-1000878 CVE-2018-1000877
                   CVE-2017-14502  

Reference:         ESB-2019.0025

Original Bulletin: 
   http://www.ubuntu.com/usn/usn-3859-1

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USN-3859-1: libarchive vulnerabilities

15 January 2019

libarchive vulnerabilities

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

    Ubuntu 18.10
    Ubuntu 18.04 LTS
    Ubuntu 16.04 LTS
    Ubuntu 14.04 LTS

Summary

Several security issues were fixed in libarchive.

Software Description

    libarchive - Library to read/write archive files

Details

It was discovered that libarchive incorrectly handled certain archive files. 
An attacker could possibly use this issue to cause a denial of service. 
CVE-2018-1000880 affected only Ubuntu 18.04 LTS and Ubuntu 18.10. 
(CVE-2018-1000877, CVE-2018-1000878, CVE-2018-1000880)

It was discovered that libarchive incorrectly handled certain archive files. 
An attacker could possibly use this issue to expose sensitive information. 
This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 18.04 
LTS. (CVE-2017-14502)

Update instructions

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

Ubuntu 18.10
    libarchive13 - 3.2.2-5ubuntu0.1
Ubuntu 18.04 LTS
    libarchive13 - 3.2.2-3.1ubuntu0.2
Ubuntu 16.04 LTS
    libarchive13 - 3.1.2-11ubuntu0.16.04.5
Ubuntu 14.04 LTS
    libarchive13 - 3.1.2-7ubuntu2.7

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.

References

    CVE-2017-14502
    CVE-2018-1000877
    CVE-2018-1000878
    CVE-2018-1000880

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