CVE-2020-3810: Vulnerability in apt package allows denial of service
Summary
CVE-2020-3810: Missing input validation in the ar/tar implementations of APT before version 2.1.2 could result in denial of service when processing specially crafted deb files. Affects apt across 2 version ranges.
< 2.1.2
< fb6366c55faff93bd7c897d2f299d38c4acf5e89
Fixed in 2.1.2. How to fix ↓
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Background
The apt package is a widely used package manager in Ubuntu. It is responsible for handling the installation, upgrade, and removal of software packages on the system. The package provides a command-line interface (CLI) and a set of libraries for managing packages. It is a critical component of the Ubuntu operating system.
Vulnerability Detail
The vulnerability identified as CVE-2020-3810 affects the ar/tar implementations of APT before version 2.1.2. It arises due to missing input validation when processing specially crafted deb files. This flaw can be exploited by an attacker to cause a denial of service (DoS) condition. By providing a malicious deb file, an attacker can trigger a crash or hang in the APT package manager, rendering it unable to perform its intended functions. The impact of this vulnerability can disrupt software installation, upgrades, and removal processes on affected systems.
How To Fix
Minimum fixed version
2.1.2
This is the first release that contains the fix.
sudo apt-get install --only-upgrade aptTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no known workaround for this vulnerability. It is crucial to apply the available fix by updating the apt package to the latest version.
Conclusion
The CVE-2020-3810 vulnerability in the apt package can lead to a denial of service condition on affected systems. It is recommended to update the apt package to version 1.2.32ubuntu0.1 or later to mitigate the risk. No known workarounds are available for this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for apt →
FAQ
The vulnerability can result in a denial of service (DoS) condition, disrupting software installation, upgrades, and removal processes on affected systems.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and receive real-time alerts for open-source vulnerabilities.
No, there is no known workaround for this vulnerability. It is essential to update the apt package to the latest version to mitigate the risk.
No, this vulnerability does not allow remote exploitation. An attacker would need to provide a specially crafted deb file to trigger the denial of service condition.
There are no known instances of this vulnerability being actively exploited in the wild. However, it is crucial to apply the fix to prevent any potential exploitation.
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