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Ubuntu 22.04 LTS: 5366-2 Critical Issues in FriBidi Memory Management

ubuntu
Calendar Grey April 27, 2022
Dist Ubuntu Esm H88
Solutions addressing various fribidi vulnerabilities in Ubuntu 22.04 LTS have been released, mitigating risks of denial of service and memory corruption.
Several security issues were fixed in fribidi.

Summary

Several security issues were fixed in fribidi.

Software Description:

- fribidi: Free Implementation of the Unicode BiDi algorithm (utility)

Details:

USN-5366-1 fixed several vulnerabilities in FriBidi. This update provides the

corresponding updates for Ubuntu 22.04 LTS.

Original advisory details:

It was discovered that FriBidi incorrectly handled processing of input strings

resulting in memory corruption. An attacker could use this issue to cause

FriBidi to crash, resulting in a denial of service, or potentially execute

arbitrary code. (CVE-2022-25308)

It was discovered that FriBidi incorrectly validated input data to its CapRTL

unicode encoder, resulting in memory corruption. An attacker could use this

issue to cause FriBidi to crash, resulting in a denial of service, or

potentially execute arbitrary code. (CVE-2022-25309)

It was discovered that FriBidi incorrectly handled empty input when removing

marks from unicode strings, resulting in a crash. An...

Read the Full Advisory

Topics%20covered

Topics Covered

security advisory denial of service memory corruption Ubuntu FriBidi

Update Instructions

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

Ubuntu 22.04 LTS:
libfribidi-bin 1.0.8-2ubuntu3.1
libfribidi-dev 1.0.8-2ubuntu3.1
libfribidi0 1.0.8-2ubuntu3.1

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

References

https://ubuntu.com/security/notices/USN-5366-2

https://ubuntu.com/security/notices/USN-5366-1

CVE-2022-25308, CVE-2022-25309, CVE-2022-25310

Severity
critical
Lowest
Low
Medium
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Critical

April 27, 2022

Topics%20covered

Topics Covered

security advisory denial of service memory corruption Ubuntu FriBidi

Package Information

https://launchpad.net/ubuntu/+source/fribidi/1.0.8-2ubuntu3.1

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