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Ubuntu: 4519-1 Critical: PulseAudio Denial Of Service Issues

ubuntu
Calendar Grey September 17, 2020
Dist Ubuntu Esm H88
Ubuntu Security Notice USN-4520-1 addresses a vulnerability in the OpenSSL library that could result in denial of service or unauthorized access.
PulseAudio could be made to crash or run programs as your login if it received specially crafted input.

Summary

PulseAudio could be made to crash or run programs as your login if it

received specially crafted input.

Software Description:

- pulseaudio: PulseAudio sound server

Details:

Ratchanan Srirattanamet discovered that an Ubuntu-specific patch caused

PulseAudio to incorrectly handle memory under certain error conditions in the

Bluez 5 module. An attacker could use this issue to cause PulseAudio to crash,

resulting in a denial of service, or possibly execute arbitrary code.

(CVE-2020-15710)

Update Instructions

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

Ubuntu 16.04 LTS:
  libpulse-mainloop-glib0         1:8.0-0ubuntu3.14
  libpulse0                       1:8.0-0ubuntu3.14
  pulseaudio                      1:8.0-0ubuntu3.14
  pulseaudio-module-bluetooth     1:8.0-0ubuntu3.14
  pulseaudio-utils                1:8.0-0ubuntu3.14

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

References

https://ubuntu.com/security/notices/USN-4519-1

CVE-2020-15710

Severity
critical
Lowest
Low
Medium
High
Critical

September 17, 2020

Package Information

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