Linux Kernel up to 5.1.6 IP ID Generator UDP Traffic Track information disclosure

Summaryinfo

A vulnerability identified as problematic has been detected in Linux Kernel up to 5.1.6. This issue affects some unknown processing of the component IP ID Generator. The manipulation as part of UDP Traffic leads to information disclosure (Track). This vulnerability is referenced as CVE-2019-10638. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 5.1.6 (Operating System). This issue affects some unknown functionality of the component IP ID Generator. The manipulation as part of a UDP Traffic leads to a information disclosure vulnerability (Track). Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

In the Linux kernel before 5.1.7, a device can be tracked by an attacker using the IP ID values the kernel produces for connection-less protocols (e.g., UDP and ICMP). When such traffic is sent to multiple destination IP addresses, it is possible to obtain hash collisions (of indices to the counter array) and thereby obtain the hashing key (via enumeration). An attack may be conducted by hosting a crafted web page that uses WebRTC or gQUIC to force UDP traffic to attacker-controlled IP addresses.

The weakness was published 07/05/2019 (Website). The advisory is shared at securityfocus.com. The identification of this vulnerability is CVE-2019-10638 since 03/29/2019. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading to version 5.1.7 eliminates this vulnerability.

Similar entries are available at VDB-136926, VDB-137406 and VDB-138244. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 5.1.0
• 5.1.1
• 5.1.2
• 5.1.3
• 5.1.4
• 5.1.5
• 5.1.6

License

• open-source

Website

• Vendor: https://www.kernel.org/

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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