Information disclosure in Windows Subsystem for Linux



Published: 2019-01-08
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-0553
CWE-ID CWE-125
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Windows
Operating systems & Components / Operating system

Windows Server
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Out-of-bounds read

EUVDB-ID: #VU16879

Risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-0553

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the Windows Subsystem for Linux. A local user can create a specially crafted application, trigger out-of-bounds read error and read portions of Kernel memory.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows: 10 1703 10.0.15063.138 - 10 1809 10.0.17763.1

Windows Server: 2019 10.0.17763.1 - 2019 1803

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0553


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.



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