==========================================================================
Ubuntu Security Notice USN-7013-1
September 16, 2024

dovecot vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS

Summary:

Several security issues were fixed in Dovecot.

Software Description:
- dovecot: IMAP and POP3 email server

Details:

It was discovered that Dovecot incorrectly handled a large number of
address headers. A remote attacker could possibly use this issue to cause
Dovecot to consume resources, leading to a denial of service.
(CVE-2024-23184)

It was discovered that Dovecot incorrectly handled very large headers. A
remote attacker could possibly use this issue to cause Dovecot to consume
resources, leading to a denial of service. (CVE-2024-23185)

Update instructions:

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

Ubuntu 22.04 LTS
   dovecot-core                    1:2.3.16+dfsg1-3ubuntu2.4

Ubuntu 20.04 LTS
   dovecot-core                    1:2.3.7.2-1ubuntu3.7

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

References:
   https://ubuntu.com/security/notices/USN-7013-1
   CVE-2024-23184, CVE-2024-23185

Package Information:
   https://launchpad.net/ubuntu/+source/dovecot/1:2.3.16+dfsg1-3ubuntu2.4
   https://launchpad.net/ubuntu/+source/dovecot/1:2.3.7.2-1ubuntu3.7

Ubuntu 7013-1: Dovecot Security Advisory Updates

September 16, 2024
Several security issues were fixed in Dovecot.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS Summary: Several security issues were fixed in Dovecot. Software Description: - dovecot: IMAP and POP3 email server Details: It was discovered that Dovecot incorrectly handled a large number of address headers. A remote attacker could possibly use this issue to cause Dovecot to consume resources, leading to a denial of service. (CVE-2024-23184) It was discovered that Dovecot incorrectly handled very large headers. A remote attacker could possibly use this issue to cause Dovecot to consume resources, leading to a denial of service. (CVE-2024-23185)

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 LTS dovecot-core 1:2.3.16+dfsg1-3ubuntu2.4 Ubuntu 20.04 LTS dovecot-core 1:2.3.7.2-1ubuntu3.7 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-7013-1

CVE-2024-23184, CVE-2024-23185

Severity
Ubuntu Security Notice USN-7013-1

Package Information

https://launchpad.net/ubuntu/+source/dovecot/1:2.3.16+dfsg1-3ubuntu2.4 https://launchpad.net/ubuntu/+source/dovecot/1:2.3.7.2-1ubuntu3.7

Related News

Fighting Back Against Hadooken Malware by Strengthening WebLogic Security
2 - 4 min read
Cybercriminals have been relentlessly attacking the digital landscape, aiming to exploit vulnerabilities in well-known systems. One such exploit is
CISA Sounds Alarm on Newly Exploited Vulnerabilities: Is Your System at Risk?
3 - 5 min read
CISA regularly publishes updates regarding vulnerabilities that present severe threats to global cybersecurity. Recently, CISA added three
Defending Against Remote Code Execution in Google Chrome: A Critical Update
2 - 3 min read
Google Chrome, a widely used web browser, serves millions of internet users by connecting them to the online world. Unfortunately, severe
Navigating the Linux Kernel
2 - 4 min read
The Linux operating system, widely acclaimed for its robustness and security , recently received widespread media attention due to a significant
Staying a Step Ahead of Adversaries: Mitigating Chromium
2 - 4 min read
Google Chrome, one of the world's most widely used web browsers, has recently been scrutinized due to the discovery of multiple Chromium
Unmasking Cicada3301: Examining the Threat of the New Rust-Based Ransomware
2 - 4 min read
Ransomware has long been a severe threat to organizations and admins alike. Recently, cybersecurity researchers discovered a new variant called
Buffer Overflow Exploits in Linux: Origins, Impact, and Countermeasures
3 - 6 min read
Buffer overflow vulnerabilities have long been one of the biggest headaches in computer security, especially on Linux operating systems that power
8 Expert-Recommended Security Practices to Fortify Your Linux Systems
4 - 8 min read
As a Linux admin or an infosec professional, you understand how the security landscape changes due to evolving threats, newly discovered

Get the Latest News & Insights

Sign up to get the latest security news affecting Linux and open source delivered straight to your inbox.

© 2024 Guardian Digital, Inc All Rights Reserved