Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×

Alerts This Week
Warning Icon 1 507
Alerts This Week
Warning Icon 1 507

Ubuntu 23.04: USN-6374-1 Critical: Mutt Input Crash Risk

ubuntu
Calendar Grey September 14, 2023
Scroller Ubuntu
Debian 12, 11, 10, and 9 updates for Pine have been released to tackle urgent stability issues and enhance overall system performance
Mutt could be made to crash if it received specially crafted input.

Summary

Mutt could be made to crash if it received specially crafted

input.

Software Description:

- mutt: text-based mailreader supporting MIME, GPG, PGP and threading

Details:

It was discovered that Mutt incorrectly handled certain email header

content. If a user were tricked into opening a specially crafted message,

a remote attacker could possibly use this issue to cause a denial of

service. (CVE-2023-4874, CVE-2023-4875)

Update Instructions

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

Ubuntu 23.04:
   mutt                            2.2.9-1ubuntu0.23.04.1

Ubuntu 22.04 LTS:
   mutt                            2.1.4-1ubuntu1.2

Ubuntu 20.04 LTS:
   mutt                            1.13.2-1ubuntu0.6

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   mutt                            1.9.4-3ubuntu0.6+esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   mutt                            1.5.24-1ubuntu0.6+esm3
   mutt-patched                    1.5.24-1ubuntu0.6+esm3

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

References

 

  CVE-2023-4874, CVE-2023-4875

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6374-1

Package Information

  https://launchpad.net/ubuntu/+source/mutt/2.2.9-1ubuntu0.23.04.1
  https://launchpad.net/ubuntu/+source/mutt/2.1.4-1ubuntu1.2
  https://launchpad.net/ubuntu/+source/mutt/1.13.2-1ubuntu0.6

Get the latest News and Insights

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