Linux Kernel up to 3.1 Keystroke /dev/pts/ information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Linux Kernel up to 3.1. Affected is an unknown function of the file /dev/pts/ of the component Keystroke Handler. Executing a manipulation can lead to information disclosure. This vulnerability is tracked as CVE-2011-4916. The attack can be launched remotely. Moreover, an exploit is present.

Detailsinfo

A vulnerability classified as problematic was found in Linux Kernel up to 3.1 (Operating System). This vulnerability affects an unknown part of the file /dev/pts/ of the component Keystroke Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. CVE summarizes:

Linux kernel through 3.1 allows local users to obtain sensitive keystroke information via access to /dev/pts/ and /dev/tty*.

The weakness was disclosed 07/13/2022. The advisory is shared for download at lkml.org. This vulnerability was named CVE-2011-4916 since 12/23/2011. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1592.

It is possible to download the exploit at openwall.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 251299 (Linux Distros Unpatched Vulnerability : CVE-2011-4916), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (251299). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 251299
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2011-4916

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/23/2011 🔍
07/13/2022 +3854 days 🔍
07/13/2022 +0 days 🔍
08/19/2025 +1133 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: lkml.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-4916 (🔍)
GCVE (CVE): GCVE-0-2011-4916
GCVE (VulDB): GCVE-100-203752
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 07/13/2022 08:40
Updated: 08/19/2025 12:13
Changes: 07/13/2022 08:40 (44), 07/23/2022 07:19 (18), 08/19/2025 12:13 (16)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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