Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 568
Alerts This Week
Warning Icon 1 568

Ubuntu 21.04: 5057-1 Critical: Squashfs-Tools Buffer Overflow

ubuntu
Calendar Grey August 31, 2021
Dist Ubuntu Esm H88
The latest squashfs-tools patch addresses a significant file replace vulnerability impacting Ubuntu 21.04 alongside its LTS variants.
squashfs-tools could be made to overwrite files.

Summary

squashfs-tools could be made to overwrite files.

Software Description:

- squashfs-tools: Tools to create and modify squashfs filesystems

Details:

Etienne Stalmans discovered that Squashfs-Tools mishandled certain malformed SQUASHFS files. An attacker could use this vulnerability to write arbitrary files to the filesystem.

Topics%20covered

Topics Covered

security advisory buffer overflow critical file overwrite Ubuntu squashfs-tools

Update Instructions

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

Ubuntu 21.04:
  squashfs-tools                  1:4.4-2ubuntu0.1

Ubuntu 20.04 LTS:
  squashfs-tools                  1:4.4-1ubuntu0.1

Ubuntu 18.04 LTS:
  squashfs-tools                  1:4.3-6ubuntu0.18.04.3

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

References

CVE-2021-40153

Severity
critical
Lowest
Low
Medium
High
Critical

August 31, 2021

Topics%20covered

Topics Covered

security advisory buffer overflow critical file overwrite Ubuntu squashfs-tools

Package Information

https://launchpad.net/ubuntu/+source/squashfs-tools/1:4.4-2ubuntu0.1
https://launchpad.net/ubuntu/+source/squashfs-tools/1:4.4-1ubuntu0.1
https://launchpad.net/ubuntu/+source/squashfs-tools/1:4.3-6ubuntu0.18.04.3

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.