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Ubuntu 18.04 LTS USN-6335-1: Severe Denial Of Service In BusyBox

ubuntu
Calendar Grey September 4, 2023
Dist Ubuntu Esm H88
Numerous security vulnerabilities resolved within Ubuntu's BusyBox, influencing various LTS editions and affecting both efficiency and protection.
Several security issues were fixed in BusyBox.

Summary

Several security issues were fixed in BusyBox.

Software Description:

- busybox: Tiny utilities for small and embedded systems

Details:

It was discovered that BusyBox incorrectly handled certain malformed gzip

archives. If a user or automated system were tricked into processing a

specially crafted gzip archive, a remote attacker could use this issue to

cause BusyBox to crash, resulting in a denial of service, or execute

arbitrary code. This issue only affected Ubuntu 14.04 LTS.

(CVE-2021-28831)

It was discovered that BusyBox did not properly validate user input when

performing certain arithmetic operations. If a user or automated system

were tricked into processing a specially crafted file, an attacker could

possibly use this issue to cause BusyBox to crash, resulting in a denial

of service, or execute arbitrary code. (CVE-2022-48174)

Topics%20covered

Topics Covered

security advisory denial of service security issue Ubuntu BusyBox

Update Instructions

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

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
busybox 1:1.27.2-2ubuntu3.4+esm1
busybox-initramfs 1:1.27.2-2ubuntu3.4+esm1
busybox-static 1:1.27.2-2ubuntu3.4+esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
busybox 1:1.22.0-15ubuntu1.4+esm2
busybox-initramfs 1:1.22.0-15ubuntu1.4+esm2
busybox-static 1:1.22.0-15ubuntu1.4+esm2

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
busybox 1:1.21.0-1ubuntu1.4+esm1
busybox-initramfs 1:1.21.0-1ubuntu1.4+esm1
busybox-static 1:1.21.0-1ubuntu1.4+esm1

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

References

https://ubuntu.com/security/notices/USN-6335-1

CVE-2021-28831, CVE-2022-48174

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6335-1

Topics%20covered

Topics Covered

security advisory denial of service security issue Ubuntu BusyBox

Package Information

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