[CIVN-2024-0033] Denial of Service Vulnerability in Cisco

Denial of Service Vulnerability in Cisco 

Indian - Computer Emergency Response Team (cert-in.org.in)

Severity Rating: CRITICAL

Component Affected

Secure Endpoint Connector for Windows

Secure Endpoint Private Cloud

Overview

A Vulnerability has been reported in OLE2 file format parser of ClamAV which could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

Description

A critical ClamAV vulnerability exists within the OLE2 file format parser due to an improper check for end-of-string values during the scanning process. This flaw can trigger a heap buffer over-read, a type of memory access error that occurs when the software reads beyond the allocated buffer boundaries. An attacker could exploit this vulnerability in ClamAV by submitting a specially crafted file containing malicious OLE2 content to an affected device running ClamAV for scanning.

If successfully exploited, this ClamAV vulnerability could enable the attacker to disrupt the scanning operation, causing the ClamAV software to crash. This would result in a Denial of Service (DoS) condition, rendering the affected system unable to perform its intended malware detection functions. Such a DoS condition could compromise security workflows that rely on ClamAV, making timely identification and mitigation essential.

Solution

Apply appropriate updates as mentioned in:

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-hDffu6t

Vendor Information

CISCO

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-hDffu6t

References

CISCO

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-hDffu6t

CVE Name

CVE-2024-20290

Addressing the ClamAV Vulnerability in OLE2 File Format Parser with Devolity

A significant ClamAV vulnerability has been identified in the OLE2 file format parser, stemming from an inadequate check for end-of-string values during the scanning process. This flaw can lead to a heap buffer over-read, where the software inadvertently accesses memory beyond its allocated boundaries. Such a vulnerability in ClamAV poses a serious risk, as an attacker could exploit it by submitting a maliciously crafted file containing OLE2 content to a device running the affected software.

Successful exploitation of this ClamAV vulnerability could terminate the scanning process, triggering a Denial of Service (DoS) condition. This disruption compromises the ClamAV software’s ability to detect malware, potentially leaving systems exposed to further threats. For organizations and professionals relying on ClamAV for security, addressing this issue promptly is critical to maintaining operational integrity.

#### Why Vulnerability Management Matters

The heap buffer over-read in ClamAV exemplifies how even robust security tools can harbor weaknesses that attackers can exploit. Whether it’s a minor glitch or a critical flaw like this DoS condition, unresolved vulnerabilities undermine system reliability and data protection. This is where expert intervention becomes essential to fix vulnerabilities effectively and prevent costly breaches.

#### Devolity- Your Solution to Fix Vulnerabilities at Any Level

At Devolity, we specialize in helping you fix vulnerabilities of any complexity, including critical issues like the ClamAV vulnerability in the OLE2 parser. Our comprehensive vulnerability management services are designed to identify, assess, and remediate security weaknesses across your software stack. Here’s how we can assist:

1. Thorough Vulnerability Assessment: We analyze your systems to detect vulnerabilities, such as the heap buffer over-read in ClamAV, using advanced diagnostic tools and techniques.
2. Tailored Remediation Plans: Our experts develop precise strategies to address the vulnerability in ClamAV, ensuring patches or workarounds are applied seamlessly to eliminate the DoS condition risk.
3. Ongoing Support: Beyond immediate fixes, Devolity provides continuous monitoring and updates to safeguard your environment against emerging threats targeting OLE2 content or other file formats.
4. Expertise Across All Levels: Whether it’s a minor misconfiguration or a severe exploit like this ClamAV vulnerability, our team has the technical proficiency to resolve issues efficiently.

#### Take Action with Devolity.com

The ClamAV vulnerability in the OLE2 file format parser is a reminder that proactive security is non-negotiable. Partnering with Devolity ensures that you not only fix vulnerabilities like this but also strengthen your defenses against future risks. Don’t let a heap buffer over-read or similar flaws compromise your operations—contact Devolity today to secure your systems with professional precision.

By leveraging our services, you can restore confidence in your ClamAV software, mitigate the DoS condition threat, and maintain a robust security posture. Visit Devolity to learn more about how we can help you address vulnerabilities at any level.

Reference -

CERT-In

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