CVE-2018-10893 : Security Advisory and Response

Spice-client has been found to have several problems with integer overflow and buffer overflow when handling compressed frames in the LZ format. If exploited, a server with malicious intent could potentially crash the client or even make it execute unauthorized code.

Understanding CVE-2018-10893

This CVE involves vulnerabilities in the spice-client software.

What is CVE-2018-10893?

CVE-2018-10893 is a security vulnerability in spice-client that allows for integer overflow and buffer overflow when processing compressed frames in the LZ format.

The Impact of CVE-2018-10893

If exploited, this vulnerability could lead to a server crashing the client or executing unauthorized code, posing a significant risk to confidentiality and integrity.

Technical Details of CVE-2018-10893

This section provides technical details of the CVE.

Vulnerability Description

The vulnerability in spice-client arises from issues related to integer overflow and buffer overflow during the handling of compressed frames in the LZ format.

Affected Systems and Versions

Product: spice-client
Vendor: Red Hat
Affected Version: Not applicable (n/a)

Exploitation Mechanism

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
User Interaction: Required
Scope: Unchanged
Confidentiality Impact: High
Integrity Impact: High
Availability Impact: Low
Base Score: 7.6 (High)
Vector String: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L

Mitigation and Prevention

Protecting systems from CVE-2018-10893 is crucial to maintaining security.

Immediate Steps to Take

Apply patches provided by Red Hat promptly.
Monitor vendor advisories for updates and follow recommended security practices.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Implement network security measures to prevent unauthorized access.

Patching and Updates

Refer to Red Hat Security Advisories RHSA-2019:2229 and RHSA-2020:0471 for patching guidance.