Norberto Kueffner

**Name of the Vulnerable Software and Affected Versions** Comodo Firewall Pro versions prior to 3.0 **Description** The issue arises from improper validation of certain parameters to hooked System Service Descriptor Table (SSDT) functions. This can be exploited by local users to cause a denial of service, resulting in a system crash. The exploitation vectors include a crafted `OBJECT ATTRIBUTES` structure in a call to the `NtDeleteFile` function, leading to improper validation of a `ZwQueryObject` result, as well as unspecified calls to the `NtCreateFile` and `NtSetThreadContext` functions. **Recommendations** For Comodo Firewall Pro versions prior to 3.0, update to version 3.0 or later to resolve the issue. As a temporary workaround, consider restricting access to the `NtDeleteFile`, `NtCreateFile`, and `NtSetThreadContext` functions to minimize the risk of exploitation. Additionally, avoid using crafted `OBJECT ATTRIBUTES` structures in calls to the `NtDeleteFile` function until the issue is resolved.

Name of the Vulnerable Software and Affected Versions: Mirabilis ICQ Pro 2003a Description: A format string issue in the POP3 client allows remote malicious servers to execute arbitrary code via format strings in the response to a UIDL command. Recommendations: For Mirabilis ICQ Pro 2003a, at the moment, there is no information about a newer version that contains a fix for this issue.

Name of the Vulnerable Software and Affected Versions: Mirabilis ICQ Pro version 2003a Description: The issue is related to integer signedness errors in the POP3 client, which can be exploited by remote attackers to execute arbitrary code. This can be achieved via the Subject or Date headers. Recommendations: For Mirabilis ICQ Pro version 2003a, consider disabling the POP3 client functionality until a patch is available to prevent potential exploitation. Restrict access to the POP3 client to minimize the risk of arbitrary code execution.

Name of the Vulnerable Software and Affected Versions: Mirabilis ICQ Pro 2003a Description: The issue concerns the "ICQ Features on Demand" functionality, which fails to properly verify the authenticity of software upgrades. This allows remote attackers to install arbitrary software via a spoofing attack. Recommendations: For Mirabilis ICQ Pro 2003a, consider disabling the "ICQ Features on Demand" functionality until a proper fix is available to prevent potential exploitation.

Name of the Vulnerable Software and Affected Versions: Mirabilis ICQ Pro version 2003a Description: The issue allows remote attackers to cause a denial of service by consuming CPU resources. This is achieved by spoofing the address of an ADS server and sending HTML with a -1 width in a table tag. Recommendations: For Mirabilis ICQ Pro version 2003a, consider disabling the rendering of HTML tables with invalid width parameters as a temporary workaround until a patch is available. Restrict access to the Message Session window to minimize the risk of exploitation.

Name of the Vulnerable Software and Affected Versions: Mirabilis ICQ Pro version 2003a Description: The issue concerns a denial of service that can be triggered by remote attackers. This is achieved through the `icqateimg32.dll` parsing/rendering library when it encounters malformed GIF89a headers. Specifically, the library is vulnerable when the headers do not contain a Global Color Table (GCT) or a Local Color Table (LCT) after an Image Descriptor. Recommendations: For Mirabilis ICQ Pro version 2003a, consider disabling the `icqateimg32.dll` library as a temporary workaround to prevent the denial of service until a patch is available. Restrict access to GIF89a files to minimize the risk of exploitation. Avoid using the vulnerable library for parsing or rendering images until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.