CVE-2016-4439 — Improper Restriction of Operations within the Bounds of a Memory Buffer in Qemu

CWE-119 — Improper Restriction of Operations within the Bounds of a Memory BufferCWE-122 — Heap-based Buffer Overflow11 documents7 sources
Severity
6.7MEDIUMNVD
EPSS
0.2%
top 54.45%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
QemuDebian QemuCanonical Ubuntu Linux+1 more
Timeline
PublishedMay 20
Latest updateMay 13

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 vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HExploitability: 0.8 | Impact: 5.9

Affected Packages4 packages

▶debiandebian/qemu< qemu 1:2.6+dfsg-2 (bookworm)
▶Debianqemu/qemu< 1:2.6+dfsg-2+3
▶Ubuntuqemu/qemu< 2.0.0+dfsg-2ubuntu1.26+3
▶NVDqemu/qemu2.6.0

Also affects: Debian Linux 8.0, Ubuntu Linux 12.04, 14.04, 16.04

Patches

Patch: www.openwall.com ↗Patch: lists.gnu.org ↗Patch: www.openwall.com ↗

🔴Vulnerability Details

4
GHSA
GHSA-7hvv-cj62-6f9j: The esp_reg_write function in hw/scsi/esp↗2022-05-13
▶
OSV
qemu, qemu-kvm regression↗2016-08-12
▶
OSV
qemu, qemu-kvm vulnerabilities↗2016-08-04
▶
OSV
CVE-2016-4439: The esp_reg_write function in hw/scsi/esp↗2016-05-20
▶

📋Vendor Advisories

4
Ubuntu
QEMU regression↗2016-08-12
▶
Ubuntu
QEMU vulnerabilities↗2016-08-04
▶
Red Hat
Qemu: scsi: esp: OOB write while writing to 's->cmdbuf' in esp_reg_write↗2016-05-19
▶
Debian
CVE-2016-4439: qemu - The esp_reg_write function in hw/scsi/esp.c in the 53C9X Fast SCSI Controller (F...↗2016
▶

💬Community

2
Bugzilla
CVE-2016-4439 Qemu: scsi: esp: OOB write while writing to 's->cmdbuf' in esp_reg_write↗2016-05-19
▶
Bugzilla
CVE-2016-4439 Qemu: scsi: esp: OOB write while writing to 's->cmdbuf' in esp_reg_write [fedora-all]↗2016-05-19
▶