Critical Vulnerabilities in Mutt Package: Denial of Service Risks
Summary
USN-6374-2: mutt vulnerabilities. Affects mutt versions < 2.2.9-1ubuntu0.23.10.1. Fixed in 2.2.9-1ubuntu0.23.10.1. How to fix ↓
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Background
Mutt is a popular text-based email client for Unix-like systems, known for its flexibility and extensive features. It allows users to manage their emails efficiently, supporting various protocols and providing a customizable interface. However, Mutt has recently been found to have vulnerabilities that could lead to denial of service if exploited by malicious actors.
Vulnerability Detail
The vulnerabilities identified in Mutt stem from improper handling of certain email header contents. Specifically, if a user is tricked into opening a specially crafted email message, a remote attacker could exploit this flaw to cause a denial of service. This could potentially disrupt the user's ability to use the email client effectively, leading to significant inconvenience and security risks.
How To Fix
Minimum fixed version
2.2.9-1ubuntu0.23.10.1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade muttTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary measure, users should avoid opening emails from untrusted sources or those that seem suspicious until the package is updated. Additionally, users can consider disabling email previews to mitigate the risk of exploitation.
Conclusion
The vulnerabilities in Mutt pose a significant risk of denial of service if exploited by attackers. Users are strongly advised to update to the latest patched version to mitigate these risks. Additionally, taking precautions when handling emails can further enhance security.
See every vulnerability recorded for mutt →
FAQ
The vulnerabilities involve improper handling of email header contents, which could lead to denial of service if exploited.
You can check your version of Mutt by running 'mutt -v' in the terminal. If it is older than 2.2.9-1ubuntu0.23.10.1, it is affected.
Avoid opening suspicious emails and consider disabling email previews as a temporary workaround.
You can refer to the original advisory details at https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6374-2.json.
Vulert monitors and alerts for open-source vulnerabilities in your software using just a manifest file like package-lock.json, without requiring code access or installation.
References
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