CVE-2023-5557 in tracker-miners
Summary
by MITRE • 10/25/2023
A flaw was found in the tracker-miners package. A weakness in the sandbox allows a maliciously-crafted file to execute code outside the sandbox if the tracker-extract process has first been compromised by a separate vulnerability.
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Analysis
by VulDB Data Team • 10/01/2025
The vulnerability identified as CVE-2023-5557 resides within the tracker-miners package, a component of the Tracker metadata extraction framework used extensively in Linux desktop environments for indexing and searching file contents. This flaw represents a critical sandbox escape vulnerability that undermines the fundamental security assumptions of the system's privilege separation mechanisms. The tracker-miners package operates with elevated privileges to access and process file contents for metadata extraction, making it a prime target for attackers seeking to escalate their privileges within the system.
The technical implementation of this vulnerability stems from inadequate sandbox boundary enforcement within the tracker-extract process. When the system processes files containing maliciously crafted content, the sandbox mechanism fails to properly contain the execution scope, allowing code to escape the restricted environment and execute with elevated privileges. This weakness creates a pathway for attackers to bypass the intended security boundaries that should isolate potentially dangerous file processing operations from the rest of the system. The vulnerability requires a pre-existing compromise of the tracker-extract process, meaning an attacker must first exploit a separate vulnerability to gain initial access before leveraging CVE-2023-5557 to escalate privileges.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it enables attackers to potentially access sensitive system resources, modify critical files, or establish persistent backdoors within the compromised environment. The vulnerability affects desktop environments that utilize Tracker for file indexing, including various GNOME-based systems and other Linux distributions that employ this metadata extraction framework. Attackers could leverage this flaw to gain unauthorized access to user data, system configuration files, or even execute arbitrary commands with system-level privileges, making it particularly dangerous in multi-user environments or systems with sensitive data.
From a cybersecurity perspective, this vulnerability aligns with CWE-242, which addresses the weakness of using potentially insecure functions that can lead to privilege escalation. The flaw also maps to ATT&CK technique T1068, which describes the use of privilege escalation techniques through the exploitation of software vulnerabilities. Organizations should prioritize immediate patching of affected systems, as the vulnerability's exploitation requires minimal additional attack surface beyond the initial compromise. System administrators should implement monitoring for suspicious tracker-extract process behavior and consider temporary disablement of metadata extraction services until patches are deployed. The vulnerability demonstrates the critical importance of proper sandbox implementation and the potential for cascading security failures when privilege separation mechanisms are not properly enforced.