CVE-2008-5684 in Solaris
Summary
by MITRE
Unspecified vulnerability in the X Inter Client Exchange library (aka libICE) in Sun Solaris 8 through 10 and OpenSolaris before snv_85 allows context-dependent attackers to cause a denial of service (application crash), as demonstrated by a port scan that triggers a segmentation violation in the Gnome session manager (aka gnome-session).
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Analysis
by VulDB Data Team • 05/24/2025
The vulnerability identified as CVE-2008-5684 resides within the X Inter Client Exchange library commonly known as libICE which is a critical component of the X Window System infrastructure on Solaris operating systems. This library facilitates communication between X clients and the X server, serving as a foundational element for graphical user interface operations across the enterprise computing landscape. The flaw manifests in versions of Sun Solaris from 8 through 10 and affects OpenSolaris prior to the snv_85 build, representing a significant security gap that could be exploited by malicious actors to disrupt system operations.
The technical nature of this vulnerability involves a context-dependent flaw that can trigger a segmentation violation within the Gnome session manager when subjected to specific network scanning activities. This type of vulnerability typically represents a memory management issue where improper handling of inter-client communication data structures leads to system instability. The segmentation fault occurs during the processing of X client exchange protocols, specifically when the Gnome session manager attempts to handle malformed or unexpected communication patterns that arise from port scanning activities. Such issues fall under the category of software defects that can be classified as CWE-125: Uninitialized Memory Read or CWE-248: Unhandled Exception, depending on the exact implementation details of the memory corruption.
The operational impact of this vulnerability extends beyond simple denial of service conditions, as it can be leveraged by attackers to cause application crashes that may require system restarts or manual intervention to restore normal operations. The demonstration of this vulnerability through port scanning activities indicates that it can be triggered remotely without requiring elevated privileges, making it particularly dangerous in networked environments where systems are exposed to external scanning. When the Gnome session manager crashes due to this segmentation violation, it can result in complete desktop environment failures, potentially affecting multiple users simultaneously in shared computing environments. This vulnerability directly impacts the availability and reliability of desktop services, which can be particularly problematic in enterprise settings where graphical user interfaces are critical for business operations.
Organizations affected by this vulnerability should implement immediate mitigations including applying the appropriate security patches provided by Oracle for Solaris 8 through 10, as well as OpenSolaris systems prior to snv_85. Network segmentation and firewall rules should be configured to limit exposure to port scanning activities, particularly on systems running vulnerable versions of libICE. The ATT&CK framework categorizes this type of vulnerability under T1499.004: Endpoint Denial of Service, which emphasizes the importance of protecting system resources from being exhausted or corrupted through malicious network activities. Additionally, system administrators should consider implementing intrusion detection systems that can identify and alert on suspicious port scanning patterns that may indicate exploitation attempts against this vulnerability. Regular security assessments and vulnerability scanning should be conducted to ensure that all systems within the organization remain protected against similar issues that may arise from outdated or unpatched components in the X Window System stack.