CVE-2016-4439
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…
Does this matter?
Lower severity and a low EPSS score (0.46%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 6.7 MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.46% probability · 39th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- canonical/ubuntu linux · qemu/qemu · debian/debian linux
- Source
- secalert@redhat.com
References
- http://www.openwall.com/lists/oss-security/2016/05/19/3Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/90760Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-3047-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3047-2Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1337502Issue Tracking, Third Party Advisory, VDB Entry
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlMailing List, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg03273.htmlMailing List, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201609-01Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/05/19/3Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/90760Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-3047-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-3047-2Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1337502Issue Tracking, Third Party Advisory, VDB Entry
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.htmlMailing List, Third Party Advisory
- https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg03273.htmlMailing List, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/201609-01Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.