Buffer overflow in qemu (Alpine package)



Published: 2017-06-16
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2016-9103
CWE-ID CWE-119
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 low risk vulnerability.

1) Buffer overflow

EUVDB-ID: #VU32087

Risk: Low

CVSSv3.1: 5.2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-9103

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The v9fs_xattrcreate function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host heap memory information by reading xattribute values before writing to them.

Mitigation

Install update from vendor's website.

Vulnerable software versions

qemu (Alpine package): 2.8.0-r1 - 2.8.1-r0

External links

http://git.alpinelinux.org/aports/commit/?id=64053e93d1b2192473cc16b8719d43e6b1c036a6
http://git.alpinelinux.org/aports/commit/?id=4fd42213196834bf5e7a33f83e9e6775606a9aba


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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