What is CVE-2015-8666?

CVE-2015-8666 is a high-severity software vulnerability (Out-of-bounds write) with a CVSS score of 7.9. Heap-based buffer overflow in QEMU, when built with the Q35-chipset-based PC system emulator.

Is CVE-2015-8666 being actively exploited?

It is not currently in CISA's KEV catalog. Its EPSS exploitation probability is 0%.

What products does CVE-2015-8666 affect?

Tracked products affected include QEMU. Check the version you run to see whether it is affected.

How do I fix CVE-2015-8666?

Apply the vendor fix promptly. An official patch or advisory is available. Upgrade affected products to a fixed version.

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CVE-2015-8666

HIGH severity · CVSS 7.9 · Out-of-bounds write

7.9CVSS HIGH

Summary

Heap-based buffer overflow in QEMU, when built with the Q35-chipset-based PC system emulator.

Impact & exploitability

Attack vectorLocal

Attack complexityLow

Privileges requiredHigh

User interactionNone

Confidentiality impactNone

Integrity impactHigh

Availability impactHigh

Exploit probability (EPSS)0%

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:H

Affected products we track (1)

QEMU

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Official patch: http://www.openwall.com/lists/oss-security/2015/12/24/1 ↗

Additional information

NVD record
http://www.openwall.com/lists/oss-security/2015/12/24/1Patch
http://git.qemu-project.org/?p=qemu.git%3Ba=commit%3Bh=d9a3b33d2c9f996537b7f1d0246dee2d0120cefb
http://www.securityfocus.com/bid/79670Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1283722Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00007.htmlAdvisory
https://security.gentoo.org/glsa/201602-01Advisory