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Ubuntu 22.04 USN-5733-1 Critical: FLAC Service Disruption Risk

ubuntu
Calendar Grey November 21, 2022
Dist Ubuntu Esm H88
Numerous vulnerabilities have been resolved in FLAC for Ubuntu, impacting several editions and posing risks of service disruption.
Several security issues were fixed in FLAC.

Summary

Several security issues were fixed in FLAC.

Software Description:

- flac: Free Lossless Audio Codec

Details:

It was discovered that FLAC was not properly performing memory management

operations, which could result in a memory leak. An attacker could possibly

use this issue to cause FLAC to consume resources, leading to a denial of

service. This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04 ESM and

Ubuntu 18.04 LTS. (CVE-2017-6888)

It was discovered that FLAC was not properly performing bounds checking

operations when decoding data. If a user or automated system were tricked

into processing a specially crafted file, an attacker could possibly use

this issue to expose sensitive information or to cause FLAC to crash,

leading to a denial of service. This issue only affected Ubuntu 14.04 ESM,

Ubuntu 16.04 ESM, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2020-0499)

It was discovered that FLAC was not properly performing bounds checking

operations when enco...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu memory management FLAC

Update Instructions

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

Ubuntu 22.04 LTS:
   flac                            1.3.3-2ubuntu0.1
   libflac++6v5                    1.3.3-2ubuntu0.1
   libflac8                        1.3.3-2ubuntu0.1

Ubuntu 20.04 LTS:
   flac                            1.3.3-1ubuntu0.1
   libflac++6v5                    1.3.3-1ubuntu0.1
   libflac8                        1.3.3-1ubuntu0.1

Ubuntu 18.04 LTS:
   flac                            1.3.2-1ubuntu0.1
   libflac++6v5                    1.3.2-1ubuntu0.1
   libflac8                        1.3.2-1ubuntu0.1

Ubuntu 16.04 ESM:
   flac                            1.3.1-4ubuntu0.1~esm1
   libflac++6v5                    1.3.1-4ubuntu0.1~esm1
   libflac8                        1.3.1-4ubuntu0.1~esm1

Ubuntu 14.04 ESM:
   flac                            1.3.0-2ubuntu0.14.04.1+esm1
   libflac++6                      1.3.0-2ubuntu0.14.04.1+esm1
   libflac8                        1.3.0-2ubuntu0.14.04.1+esm1

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

References

  https://ubuntu.com/security/notices/USN-5733-1

  CVE-2017-6888, CVE-2020-0499, CVE-2021-0561

Severity
critical
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Low
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Critical

November 21, 2022

Topics%20covered

Topics Covered

security advisory denial of service Ubuntu memory management FLAC

Package Information

  https://launchpad.net/ubuntu/+source/flac/1.3.3-2ubuntu0.1
  https://launchpad.net/ubuntu/+source/flac/1.3.3-1ubuntu0.1
  https://launchpad.net/ubuntu/+source/flac/1.3.2-1ubuntu0.1

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