Linux Kernel up to 4.9.4 Log kl5kusb105.c klsi_105_get_line_state log file

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 4.9.4. It has been classified as problematic. Impacted is the function klsi_105_get_line_state of the file drivers/usb/serial/kl5kusb105.c of the component Log Handler. The manipulation leads to log file. This vulnerability is listed as CVE-2017-5549. The attack must be carried out locally. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel up to 4.9.4 (Operating System). This issue affects the function klsi_105_get_line_state of the file drivers/usb/serial/kl5kusb105.c of the component Log Handler. The manipulation with an unknown input leads to a log file vulnerability. Using CWE to declare the problem leads to CWE-532. Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information. Impacted is confidentiality. The summary by CVE is:

The klsi_105_get_line_state function in drivers/usb/serial/kl5kusb105.c in the Linux kernel before 4.9.5 places uninitialized heap-memory contents into a log entry upon a failure to read the line status, which allows local users to obtain sensitive information by reading the log.

The bug was discovered 02/06/2017. The weakness was presented 02/06/2017 (Website). It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2017-5549 since 01/20/2017. Attacking locally is a requirement. The requirement for exploitation is a simple authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 97357 (Debian DSA-3791-1 : linux - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 351446 (Amazon Linux Security Advisory for kernel: ALAC2012-2018-012).

Upgrading to version 4.9.5 eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (97357) and SecurityFocus (BID 95715†). See VDB-93850, VDB-95265, VDB-96555 and VDB-96557 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
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: Log file
CWE: CWE-532 / CWE-200 / CWE-284
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 97357
Nessus Name: Debian DSA-3791-1 : linux - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703791
OpenVAS Name: Debian Security Advisory DSA 3791-1 (linux - security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Kernel 4.9.5
Patch: git.kernel.org

Timelineinfo

01/20/2017 🔍
01/20/2017 +0 days 🔍
02/06/2017 +17 days 🔍
02/06/2017 +0 days 🔍
02/06/2017 +0 days 🔍
02/06/2017 +0 days 🔍
02/22/2017 +16 days 🔍
02/24/2017 +2 days 🔍
11/11/2022 +2086 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 146cc8a17a3b4996f6805ee5c080e7101277c410
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-5549 (🔍)
GCVE (CVE): GCVE-0-2017-5549
GCVE (VulDB): GCVE-100-96563

OVAL: 🔍

SecurityFocus: 95715 - Linux Kernel CVE-2017-5549 Local Denial of Service Vulnerability
OSVDB: - CVE-2017-5549 - Linux - Information Disclosure Issue

See also: 🔍

Entryinfo

Created: 02/06/2017 19:26
Updated: 11/11/2022 17:40
Changes: 02/06/2017 19:26 (71), 08/11/2020 09:56 (6), 11/11/2022 17:33 (3), 11/11/2022 17:40 (12)
Complete: 🔍
Cache ID: 216:000:103

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