#VU41162 Buffer overflow in QEMU - CVE-2013-4150

Vulnerability identifier: #VU41162

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2013-4150

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
QEMU
Client/Desktop applications / Virtualization software

Vendor: QEMU

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

The virtio_net_load function in hw/net/virtio-net.c in QEMU 1.5.0 through 1.7.x before 1.7.2 allows remote attackers to cause a denial of service or possibly execute arbitrary code via vectors in which the value of curr_queues is greater than max_queues, which triggers an out-of-bounds write.

Mitigation
Install update from vendor's website.

Vulnerable software versions

QEMU: 1.5.0 - 1.7.1

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External links
https://git.qemu.org/?p=qemu.git;a=commit;h=eea750a5623ddac7a61982eec8f1c93481857578
https://lists.fedoraproject.org/pipermail/package-announce/2014-May/133345.html
https://lists.nongnu.org/archive/html/qemu-stable/2014-07/msg00187.html
https://rhn.redhat.com/errata/RHSA-2014-0927.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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