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Ubuntu 21.04 USN-4968-1 Critical: LZ4 Denial Of Service Issue

ubuntu
Calendar Grey May 26, 2021
Dist Ubuntu Esm H88
Ubuntu Security Notice USN-4969-1 discusses a critical flaw in OpenSSL affecting different Ubuntu versions.
LZ4 could be made to crash or run programs if it opened a specially crafted file.

Summary

Topics%20covered

Topics Covered

security advisory denial of service security issue critical code execution Ubuntu ubuntu update recommendation lz4 LZ4

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 21.04: liblz4-1 1.9.3-1ubuntu0.1 Ubuntu 20.10: liblz4-1 1.9.2-2ubuntu0.20.10.1 Ubuntu 20.04 LTS: liblz4-1 1.9.2-2ubuntu0.20.04.1 Ubuntu 18.04 LTS: liblz4-1 0.0~r131-2ubuntu3.1 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-4968-1

CVE-2021-3520

Severity
critical
Lowest
Low
Medium
High
Critical

May 26, 2021

Topics%20covered

Topics Covered

security advisory denial of service security issue critical code execution Ubuntu ubuntu update recommendation lz4 LZ4

Package Information

https://launchpad.net/ubuntu/+source/lz4/1.9.3-1ubuntu0.1 https://launchpad.net/ubuntu/+source/lz4/1.9.2-2ubuntu0.20.10.1 https://launchpad.net/ubuntu/+source/lz4/1.9.2-2ubuntu0.20.04.1 https://launchpad.net/ubuntu/+source/lz4/0.0~r131-2ubuntu3.1

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