CVE-2008-7185 in Rhythmbox
Summary
by MITRE
GNOME Rhythmbox 0.11.5 allows remote attackers to cause a denial of service (segmentation fault and crash) via a playlist (.pls) file with a long Title field, possibly related to the g_hash_table_lookup function in b-playlist-manager.c.
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Analysis
by VulDB Data Team • 08/26/2025
The vulnerability identified as CVE-2008-7185 affects GNOME Rhythmbox version 0.11.5, a popular media player application that forms part of the GNOME desktop environment. This issue represents a classic buffer overflow condition that manifests as a denial of service attack, where malicious actors can exploit the application's handling of playlist files to crash the media player. The vulnerability specifically targets the processing of .pls playlist files, which are text-based files used to store information about audio and video media content, including metadata such as titles, artists, and file locations. The flaw occurs when the application encounters a playlist file containing an excessively long Title field, causing the program to crash with a segmentation fault.
The technical root cause of this vulnerability lies within the g_hash_table_lookup function implementation in the b-playlist-manager.c source file, which is part of Rhythmbox's internal playlist management system. When processing a malformed playlist with an overly long title field, the application fails to properly validate input length before attempting to store or retrieve data from hash tables used for metadata management. This improper input validation creates a condition where the hash table operations overflow memory boundaries, leading to unpredictable behavior and ultimately causing the application to terminate abruptly. The vulnerability demonstrates poor defensive programming practices where string length validation is insufficient, allowing malicious input to bypass normal execution flow and trigger system-level crashes.
The operational impact of this vulnerability extends beyond simple service disruption, as it represents a potential vector for more sophisticated attacks within the context of a broader security compromise. Attackers can leverage this vulnerability to repeatedly crash the media player, effectively preventing legitimate users from accessing their music libraries and potentially disrupting system usability. From an attacker's perspective, this vulnerability aligns with the ATT&CK technique T1499.004 - Endpoint Denial of Service, where adversaries target applications to deny access to computing resources. The vulnerability also maps to CWE-121, Stack-based Buffer Overflow, and CWE-125, Out-of-bounds Read, as the application fails to properly manage memory boundaries when processing user-supplied data. This type of denial of service attack can be particularly effective in environments where users frequently interact with media player applications and rely on consistent availability of their audio content.
Mitigation strategies for CVE-2008-7185 should focus on immediate application-level patches and input validation improvements. System administrators should prioritize updating Rhythmbox to versions that address this specific vulnerability, as the original 0.11.5 release contains no built-in protections against malformed playlist files. The recommended approach involves implementing strict input length validation before processing any playlist metadata, particularly for fields that are known to be susceptible to abuse. Additionally, users should avoid opening playlist files from untrusted sources, as the vulnerability can be exploited through social engineering attacks where malicious actors distribute specially crafted playlist files designed to crash the application. Network-level defenses should also consider implementing content filtering mechanisms that can identify and block potentially malicious playlist files based on their structure and field lengths. Organizations should also implement regular security updates and patch management procedures to prevent exploitation of similar vulnerabilities in other media applications and desktop environments that may share similar code patterns and input handling mechanisms.