CVE-2016-4439
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2016-4439
Vendor advisory: secalert@redhat.com — https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg03273.html
Vendor advisory: secalert@redhat.com — http://www.openwall.com/lists/oss-security/2016/05/19/3
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2016-4439.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| ubuntu | 12.04 | affected | |
| ubuntu | 14.04 | affected | |
| ubuntu | 16.04 | affected | |
| debian | 8.0 | affected | |
| debian | bookworm | fixed | 1:2.6+dfsg-2 |
| debian | bullseye | fixed | 1:2.6+dfsg-2 |
| debian | forky | fixed | 1:2.6+dfsg-2 |
| debian | sid | fixed | 1:2.6+dfsg-2 |
| debian | trixie | fixed | 1:2.6+dfsg-2 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| qemu | qemu | {"endIncluding":"2.6.0"} | |
References
- https://www.suse.com/security/cve/CVE-2016-4439.html
- http://www.openwall.com/lists/oss-security/2016/05/19/3
- http://www.securityfocus.com/bid/90760
- http://www.ubuntu.com/usn/USN-3047-1
- http://www.ubuntu.com/usn/USN-3047-2
- https://bugzilla.redhat.com/show_bug.cgi?id=1337502
- https://lists.debian.org/debian-lts-announce/2018/11/msg00038.html
- https://lists.gnu.org/archive/html/qemu-devel/2016-05/msg03273.html
- https://security.gentoo.org/glsa/201609-01
- https://security-tracker.debian.org/tracker/CVE-2016-4439
CWEs
CWE-119
Verify integrity in audit chain (admin only). AS-IS.