Input validation error in qemu (Alpine package)



Published: 2017-04-18
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2016-8909
CWE-ID CWE-20
Exploitation vector Local
Public exploit N/A
Vulnerable software
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qemu (Alpine package)
Operating systems & Components / Operating system package or component

Vendor Alpine Linux Development Team

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Input validation error

EUVDB-ID: #VU32134

Risk: Medium

CVSSv3.1: 5.2 [AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-8909

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows local guest OS administrators to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (infinite loop and CPU consumption) via an entry with the same value for buffer length and pointer position.

Mitigation

Install update from vendor's website.

Vulnerable software versions

qemu (Alpine package): 2.8.1-r0

External links

http://git.alpinelinux.org/aports/commit/?id=64053e93d1b2192473cc16b8719d43e6b1c036a6
http://git.alpinelinux.org/aports/commit/?id=251f7b99aba7d81c9ef398c6f3ec41f06c2ba661


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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