CVE-2016-4439
MEDIUM severity · CVSS 6.7 · Memory corruption
6.7CVSS MEDIUM
Summary
The esp_reg_write function in hw/scsi/esp.c in the 53C9X Fast SCSI Controller (FSC) support in QEMU does not properly check command buffer length, which allows local guest OS administrators to cause a denial of service (out-of-bounds write and QEMU process crash) or potentially execute arbitrary code on the QEMU host via unspecified vectors.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredHigh
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: http://www.openwall.com/lists/oss-security/2016/05/19/3 ↗
Additional information
- NVD record
- http://www.openwall.com/lists/oss-security/2016/05/19/3Patch
- https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg03273.htmlPatch
- http://www.securityfocus.com/bid/90760Advisory
- http://www.ubuntu.com/usn/USN-3047-1Advisory
- http://www.ubuntu.com/usn/USN-3047-2Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1337502Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlAdvisory
- https://security.gentoo.org/glsa/201609-01Advisory