Linux Kernel up to 4.11.4 ALSA Driver sound/core/timer.c information disclosure

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

A vulnerability classified as problematic was found in Linux Kernel up to 4.11.4 (Operating System). This vulnerability affects an unknown code block of the file sound/core/timer.c of the component ALSA Driver. 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:

sound/core/timer.c in the Linux kernel before 4.11.5 is vulnerable to a data race in the ALSA /dev/snd/timer driver resulting in local users being able to read information belonging to other users, i.e., uninitialized memory contents may be disclosed when a read and an ioctl happen at the same time.

The bug was discovered 06/07/2017. The weakness was released 06/17/2017 by Alex (Website). The advisory is available at git.kernel.org. This vulnerability was named CVE-2017-1000380 since 06/13/2017. Local access is required to approach this attack. The requirement for exploitation is a single authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 10 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 101127 (openSUSE Security Update : the Linux Kernel (openSUSE-2017-716) (Stack Clash)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE 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 4.11.5 eliminates this vulnerability. A possible mitigation has been published 4 days after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (101127). Entries connected to this vulnerability are available at 96555, 96560, 96561 and 96562.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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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

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

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

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 101127
Nessus Name: openSUSE Security Update : the Linux Kernel (openSUSE-2017-716) (Stack Clash)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 850584
OpenVAS Name: SuSE Update for Kernel openSUSE-SU-2017:1633-1 (Kernel)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Kernel 4.11.5
Patch: git.kernel.org

Timelineinfo

06/07/2017 🔍
06/13/2017 +6 days 🔍
06/17/2017 +4 days 🔍
06/17/2017 +0 days 🔍
06/17/2017 +0 days 🔍
06/18/2017 +1 days 🔍
06/21/2017 +3 days 🔍
06/30/2017 +9 days 🔍
12/08/2022 +1987 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: RHSA-2017:3295
Researcher: Alexander Potapenko (Alex)
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-1000380 (🔍)
OVAL: 🔍

SecurityFocus: 99121 - Linux Kernel 'sound/core/timer.c' Local Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 06/18/2017 08:59
Updated: 12/08/2022 15:20
Changes: 06/18/2017 08:59 (80), 10/18/2019 21:59 (6), 12/29/2020 07:24 (2), 12/08/2022 15:20 (4)
Complete: 🔍

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