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Ubuntu 14.04 ESM: USN-4918-2 Critical: ClamAV Denial Of Service Fix

ubuntu
Calendar Grey April 20, 2021
Dist Ubuntu Esm H88
Numerous vulnerabilities in ClamAV were resolved through Ubuntu's patch USN-4918-2, effectively mitigating risk of denial of service attacks.
Several security issues were fixed in ClamAV.

Summary

Several security issues were fixed in ClamAV.

Software Description:

- clamav: Anti-virus utility for Unix

Details:

USN-4918-1 fixed several vulnerabilities in ClamAV. This update provides

the corresponding update for Ubuntu 14.04 ESM.

Original advisory details:

It was discovered that ClamAV incorrectly handled parsing Excel documents.

A remote attacker could possibly use this issue to cause ClamAV to hang,

resulting in a denial of service. (CVE-2021-1252)

It was discovered that ClamAV incorrectly handled parsing PDF documents. A

remote attacker could possibly use this issue to cause ClamAV to crash,

resulting in a denial of service. (CVE-2021-1404)

It was discovered that ClamAV incorrectly handled parsing email. A remote

attacker could possibly use this issue to cause ClamAV to crash, resulting

in a denial of service. (CVE-2021-1405)

Topics%20covered

Topics Covered

security advisory denial of service critical issue update antivirus security fix Ubuntu ubuntu critical issues clamav ClamAV ESM

Update Instructions

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

Ubuntu 14.04 ESM:
  clamav                          0.103.2+dfsg-0ubuntu0.14.04.1+esm1

This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.

References

https://ubuntu.com/security/notices/USN-4918-2

https://ubuntu.com/security/notices/USN-4918-1

CVE-2021-1252, CVE-2021-1404, CVE-2021-1405

Severity
critical
Lowest
Low
Medium
High
Critical

April 20, 2021

Topics%20covered

Topics Covered

security advisory denial of service critical issue update antivirus security fix Ubuntu ubuntu critical issues clamav ClamAV ESM

Package Information

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