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Ubuntu 20.04 LTS: Security Advisory 4437-1 for libslirp Denial Of Service

ubuntu
Calendar Grey July 27, 2020
Dist Ubuntu Esm H88
Ubuntu 20.04 LTS release introduces a patch resolving libslirp crash vulnerability stemming from erroneous traffic patterns. Urgent update suggested!
libslirp could be made to crash if it received specially crafted network traffic.

Summary

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

traffic.

Software Description:

- 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.

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu network attack libslirp

Update Instructions

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

Ubuntu 20.04 LTS:
  libslirp0                       4.1.0-2ubuntu2.1

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

References

https://ubuntu.com/security/notices/USN-4437-1

CVE-2020-10756

Severity
important
Lowest
Low
Medium
High
Critical

July 27, 2020

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu network attack libslirp

Package Information

https://launchpad.net/ubuntu/+source/libslirp/4.1.0-2ubuntu2.1

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