Plattform
linux
Komponente
xreader
Behoben in
3.8.3
CVE-2023-44451 is a Remote Code Execution (RCE) vulnerability affecting Linux Mint Xreader versions 3.8.2 through 3.8.2. This flaw stems from insufficient validation of user-supplied paths during EPUB file parsing, enabling attackers to potentially execute arbitrary code. Exploitation requires user interaction, such as opening a malicious EPUB file or visiting a specially crafted webpage. A patch is available to address this vulnerability.
The impact of CVE-2023-44451 is significant due to its RCE nature. A successful exploit allows an attacker to gain complete control over the affected system, potentially leading to data theft, system compromise, and further malicious activity. The vulnerability is triggered by parsing a specially crafted EPUB file, making it possible to deliver the exploit through various channels, including email attachments, malicious websites, or compromised file shares. The attacker could install malware, steal sensitive data, or use the compromised system as a launchpad for attacks against other systems on the network. This vulnerability shares characteristics with other file parsing vulnerabilities where insufficient input validation leads to arbitrary code execution.
CVE-2023-44451 was publicly disclosed on May 3, 2024. Its EPSS score is currently pending evaluation. No public proof-of-concept (PoC) exploits have been widely reported at the time of this writing, but the RCE nature of the vulnerability makes it a likely target for exploitation. Monitor security advisories and threat intelligence feeds for updates.
Users of Linux Mint who regularly use Xreader to view EPUB files are at risk. This includes individuals who frequently download EPUB files from untrusted sources or browse websites that may host malicious EPUB content. Systems with Xreader configured to automatically open EPUB files are particularly vulnerable.
• linux / server:
journalctl -u xreader | grep -i error• linux / server:
lsof | grep xreader• linux / server:
ps aux | grep xreaderdisclosure
Exploit-Status
EPSS
48.23% (98% Perzentil)
CISA SSVC
CVSS-Vektor
The primary mitigation for CVE-2023-44451 is to upgrade Xreader to a patched version as soon as it becomes available from the Linux Mint repositories. In the interim, several workarounds can reduce the risk. Restrict user access to untrusted EPUB files and websites. Implement strict file access controls to prevent users from executing files from untrusted locations. Consider using a Web Application Firewall (WAF) or proxy server to filter potentially malicious EPUB files. Regularly scan systems for suspicious files and processes. While a specific Sigma or YARA rule isn't readily available, monitoring for unusual process execution originating from the Xreader process can be a useful indicator.
Actualice Xreader a una versión posterior a 3.8.2. Esto solucionará la vulnerabilidad de recorrido de directorios al analizar archivos EPUB.
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CVE-2023-44451 is a Remote Code Execution (RCE) vulnerability in Linux Mint Xreader versions 3.8.2–3.8.2. It allows attackers to execute code via a malicious EPUB file.
You are affected if you are using Linux Mint Xreader version 3.8.2–3.8.2 and are able to open EPUB files. Check your installed version and upgrade if necessary.
Upgrade Xreader to the latest available version through the Linux Mint package manager. This will include the necessary patch to address the vulnerability.
There is currently no confirmed evidence of active exploitation in the wild, but the vulnerability's nature makes it a potential target.
Refer to the official Linux Mint security advisories for the most up-to-date information and patch releases: https://www.linuxmint.com/security/.
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