Overview
CVE-2025-20705 is a critical security vulnerability discovered in the monitor_hang function which can potentially lead to memory corruption due to use after free. This vulnerability can be exploited by a malicious actor to escalate their privilege to System level, leading to possible system compromise or data leakage. Given its severity and the potential damage it can cause, it is imperative for system administrators and security teams to understand this vulnerability and take necessary mitigation steps.
Vulnerability Summary
CVE ID: CVE-2025-20705
Severity: High (CVSS: 7.8)
Attack Vector: Local
Privileges Required: System
User Interaction: None
Impact: System compromise and potential data leakage
Affected Products
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Product | Affected Versions
[Insert product] | [Insert affected version]
[Insert product] | [Insert affected version]
(Note: The affected products need to be specified. Without the exact data, it’s not possible to infer the affected products)
How the Exploit Works
The exploit leverages a flaw in the monitor_hang function where a dangling pointer can be used after the memory it points to has been freed. This creates a “use after free” condition that can lead to memory corruption. An attacker who has already obtained System privileges can exploit this flaw to escalate their privileges to a higher level, potentially gaining full control over the system or causing data leakage.
Conceptual Example Code
Please note that this is a simplified and hypothetical example of how the vulnerability might be exploited. Actual exploitation would depend on the specific conditions of the target system.
$ echo "malicious_payload" > /proc/monitor_hangIn this example, the attacker with system privileges writes a malicious payload to the /proc/monitor_hang file. If the vulnerability exists, this could lead to memory corruption and potential privilege escalation.