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Ubuntu 12.04 LTS USN-2522-2 Important: ICU Memory Vulnerability Fixed

ubuntu
Calendar Grey March 6, 2015
Dist Ubuntu Esm H88
Security vulnerability found in ICU affecting font rendering on Ubuntu 12.04 LTS, leading to stability concerns.
USN-2522-1 introduced a regression in ICU.

Summary

USN-2522-1 introduced a regression in ICU.

Software Description:

- icu: International Components for Unicode library

Details:

USN-2522-1 fixed vulnerabilities in ICU. On Ubuntu 12.04 LTS, the font

patches caused a regression when using LibreOffice Calc. The patches have

been temporarily backed out until the regression is investigated.

We apologize for the inconvenience.

Original advisory details:

It was discovered that ICU incorrectly handled memory operations when

processing fonts. If an application using ICU processed crafted data, an

attacker could cause it to crash or potentially execute arbitrary code with

the privileges of the user invoking the program. This issue only affected

Ubuntu 12.04 LTS. (CVE-2013-1569, CVE-2013-2383, CVE-2013-2384,

CVE-2013-2419)

It was discovered that ICU incorrectly handled memory operations when

processing fonts. If an application using ICU processed crafted data, an

attacker could cause it to crash or poten...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory critical Ubuntu regression ICU memory operations font processing

Update Instructions

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

Ubuntu 12.04 LTS:
  libicu48                        4.8.1.1-3ubuntu0.4

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

References

https://ubuntu.com/security/notices/USN-2522-1

https://bugs.launchpad.net/ubuntu/+source/icu/+bug/1429043

Severity
important
Lowest
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Critical

March 06, 2015

Topics%20covered

Topics Covered

security advisory critical Ubuntu regression ICU memory operations font processing

Package Information

https://launchpad.net/ubuntu/+source/icu/4.8.1.1-3ubuntu0.4

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