Denial of service in Windows Subsystem for Linux



Published: 2017-10-10
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2017-8703
CWE-ID CWE-264
Exploitation vector Local
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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Windows
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Denial of service

EUVDB-ID: #VU8785

Risk: Low

CVSSv3.1: 5.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2017-8703

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local attacker to perform a DoS attack.

The vulnerability exists due to an error when Windows Subsystem for Linux improperly handles objects in memory. A local attacker can run a specially crafted application and cause the system to crash.

Successful exploitation of the vulnerability results in denial of service.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8703


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



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