ESB-2020.2560 – [Ubuntu] libslirp: Multiple vulnerabilities

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.2560
                    USN-4437-1: libslirp vulnerability
                               28 July 2020

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

Product:           libslirp
Publisher:         Ubuntu
Operating System:  Ubuntu
Impact/Access:     Denial of Service        -- Remote/Unauthenticated
                   Access Confidential Data -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-10756  

Reference:         ESB-2020.2544
                   ESB-2020.2448

Original Bulletin: 
   https://usn.ubuntu.com/4437-1/

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USN-4437-1: libslirp vulnerability
27 July 2020

libslirp could be made to crash if it received specially crafted network
traffic.
Releases

  o Ubuntu 20.04 LTS

Packages

  o libslirp - None

Details

Ziming Zhang and VictorV discovered that libslirp incorrectly handled
replying to certain ICMP echo requests. A remote attacker could possibly
use this issue to cause libslirp to crash, resulting in a denial of
service.

Update instructions

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

Ubuntu 20.04

  o libslirp0 - 4.1.0-2ubuntu2.1

After a standard system update you need to reboot your computer to make
all the necessary changes.

References

  o CVE-2020-10756

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