Linux Kernel ALSA Sequencer Interface /dev/snd/seq use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability has been found in Linux Kernel and classified as critical. This issue affects some unknown processing of the file /dev/snd/seq of the component ALSA Sequencer Interface. Performing a manipulation results in use after free. This vulnerability is cataloged as CVE-2017-15265. The attack must be initiated from a local position. There is no exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel (Operating System) (the affected version unknown). This affects an unknown part of the file /dev/snd/seq of the component ALSA Sequencer Interface. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability.

The bug was discovered 10/12/2017. The weakness was shared 10/11/2017 by Michael23 Yu as confirmed posting (Mailing List). It is possible to read the advisory at mailman.alsa-project.org. This vulnerability is uniquely identified as CVE-2017-15265 since 10/11/2017. Attacking locally is a requirement. A authentication is necessary for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 104158 (Fedora 26 : kernel (2017-c110ac0eb1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170433 (SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2017:2847-1)).

Applying the patch http:/mailman.alsa-project.org/pipermail/alsa-devel/2017-October/126292.html is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (104158), SecurityFocus (BID 101288†) and SecurityTracker (ID 1039561†). The entries VDB-107862, VDB-108293, VDB-108798 and VDB-109797 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.1
VulDB Meta Temp Score: 6.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.0
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: Use after free
CWE: CWE-416 / CWE-119
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: 104158
Nessus Name: Fedora 26 : kernel (2017-c110ac0eb1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for kernel FEDORA-2017-cafcdbdde5
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: http:/mailman.alsa-project.org/pipermail/alsa-devel/2017-October/126292.html

Timelineinfo

10/11/2017 🔍
10/11/2017 +0 days 🔍
10/11/2017 +0 days 🔍
10/11/2017 +0 days 🔍
10/12/2017 +1 days 🔍
10/12/2017 +0 days 🔍
10/14/2017 +2 days 🔍
10/16/2017 +2 days 🔍
10/26/2017 +10 days 🔍
01/03/2023 +1895 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: FEDORA-2017-c110ac0eb1
Researcher: Venustech ADLab (Michael23 Yu)
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-15265 (🔍)
GCVE (CVE): GCVE-0-2017-15265
GCVE (VulDB): GCVE-100-107859
SecurityFocus: 101288 - Linux kernel CVE-2017-15265 Use After Free Local Denial of Service Vulnerability
SecurityTracker: 1039561

See also: 🔍

Entryinfo

Created: 10/14/2017 11:19
Updated: 01/03/2023 14:48
Changes: 10/14/2017 11:19 (80), 11/24/2019 16:35 (5), 01/17/2021 07:22 (2), 01/17/2021 07:25 (1), 01/03/2023 14:45 (4), 01/03/2023 14:48 (1)
Complete: 🔍
Cache ID: 216:890:103

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