Advisories

==========================================================================
Ubuntu Security Notice USN-5156-1
November 24, 2021

A security issue was fixed in ICU
==========================================================================

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

- Ubuntu 21.04
- Ubuntu 20.04 LTS

Summary:

ICU could be made to crash if it received specially crafted
input.

Software Description:
- icu: International Components for Unicode library

Details:

It was discovered that ICU contains a double free issue.
An attacker could use this issue to cause a denial of service or 
possibly execute arbitrary code.

Update instructions:

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

Ubuntu 21.04:
icu-devtools 67.1-6ubuntu2.1
libicu-dev 67.1-6ubuntu2.1
libicu67 67.1-6ubuntu2.1

Ubuntu 20.04 LTS:
icu-devtools 66.1-2ubuntu2.1
libicu-dev 66.1-2ubuntu2.1
libicu66 66.1-2ubuntu2.1

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

References:
https://ubuntu.com/security/notices/USN-5156-1
CVE-2021-30535

Package Information:
https://launchpad.net/ubuntu/+source/icu/67.1-6ubuntu2.1
https://launchpad.net/ubuntu/+source/icu/66.1-2ubuntu2.1

Ubuntu 5156-1: ICU vulnerability

November 24, 2021

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 21.04 - Ubuntu 20.04 LTS Summary: ICU could be made to crash if it received specially crafted input. Software Description: - icu: International Components for Unicode library Details: It was discovered that ICU contains a double free issue. An attacker could use this issue to cause a denial of service or possibly execute arbitrary code.

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 21.04: icu-devtools 67.1-6ubuntu2.1 libicu-dev 67.1-6ubuntu2.1 libicu67 67.1-6ubuntu2.1 Ubuntu 20.04 LTS: icu-devtools 66.1-2ubuntu2.1 libicu-dev 66.1-2ubuntu2.1 libicu66 66.1-2ubuntu2.1 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-5156-1

CVE-2021-30535

Severity
Ubuntu Security Notice USN-5156-1

Package Information

https://launchpad.net/ubuntu/+source/icu/67.1-6ubuntu2.1 https://launchpad.net/ubuntu/+source/icu/66.1-2ubuntu2.1

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