The widely used text editor Vim has been found to have several vulnerabilities that pose a risk to system security. In this blog post, we will explore the details of these vulnerabilities, their impact, and the affected versions of Ubuntu. It is important for users to be aware of these issues so they can take the necessary actions to protect their systems.
Vulnerabilities in Vim
A flaw in Vim allowed attackers to dereference invalid memory, potentially leading to a denial of service. This affected Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS.
Vim was susceptible to infinite recursion, providing an opportunity for attackers to cause a denial of service. This issue impacted Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, and Ubuntu 22.04 LTS.
A critical vulnerability in Vim allowed attackers to perform out-of-bounds writes with a put command, posing a risk of denial of service or arbitrary code execution. This flaw was specific to Ubuntu 22.04 LTS.
CVE-2022-1897 and CVE-2022-2000
Vim exhibited vulnerabilities that could result in out-of-bounds writes, creating avenues for denial of service or arbitrary code execution. Affected Ubuntu versions included 14.04 LTS, 18.04 LTS, 20.04 LTS, and 22.04 LTS.
Vim’s inadequate memory management in the spell command presented a risk of denial of service or arbitrary code execution. This vulnerability specifically impacted Ubuntu 22.04 LTS.
CVE-2023-46246 and CVE-2023-48231
Vim’s flawed memory management could result in a denial of service or arbitrary code execution. These vulnerabilities were not tied to specific Ubuntu versions.
A critical vulnerability in Vim could lead to a denial of service by coercion into division by zero. This issue exclusively affected Ubuntu 23.04 and Ubuntu 23.10.
CVE-2023-48233 to CVE-2023-48237
Vim faced multiple vulnerabilities related to arithmetic overflows, each presenting a risk of denial of service. These issues were not version-specific.
A vulnerability in Vim’s substitute command presented a risk of denial of service or arbitrary code execution. This issue was specific to Ubuntu 22.04 LTS, Ubuntu 23.04, and Ubuntu 23.10.
It is important for users and administrators to stay informed about these vulnerabilities, and to regularly update Vim and apply security patches in order to mitigate the risks associated with these issues. For end-of-life systems such as Ubuntu 16.04 and Ubuntu 18.04, a subscription to Ubuntu Pro or Extended Lifecycle Support from TuxCare is required to receive security updates. Users should speak to a TuxCare Linux security expert for ongoing security patches for their end-of-life Ubuntu systems. The sources for this article can be found on USN-6557-1.