Vulnerability identifier: #VU6940

Vulnerability risk: Low

CVSSv3.1: 2.3 [CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-8086

CWE-ID: CWE-119

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
QEMU
Client/Desktop applications / Virtualization software

Vendor: QEMU

Description
Memory leak in the v9fs_list_xattr function in hw/9pfs/9p-xattr.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (memory consumption) via vectors involving the orig_value variable.

Mitigation
Update to version 2.9.0-r2.

Vulnerable software versions

QEMU: 0.1 - 2.9.0

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External links
http://git.qemu.org/?p=qemu.git;a=commit;h=4ffcdef4277a91af15a3c09f7d16af072c29f3f2

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.