CVE-2016-2198
Ubuntu Security Notice USN-2891-1
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
QEMU (aka Quick Emulator) built with the USB EHCI emulation support is vulnerable to a null pointer dereference flaw. It could occur when an application attempts to write to EHCI capabilities registers. A privileged user inside quest could use this flaw to crash the QEMU process instance resulting in DoS.
QEMU (también conocido como Quick Emulator) construido con el soporte de emulación USB EHCI es vulnerable a una falla de referencia de puntero null. Podría ocurrir cuando una aplicación trata de escribir en los registros de capacidades EHCI. Un usuario privilegiado dentro del huésped podría utilizar esta falla para bloquear la instancia de proceso QEMU resultando en DoS.
Qinghao Tang discovered that QEMU incorrectly handled PCI MSI-X support. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 15.10. Lian Yihan discovered that QEMU incorrectly handled the VNC server. A remote attacker could use this issue to cause QEMU to crash, resulting in a denial of service. Various other issues were also addressed.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2016-01-29 CVE Reserved
- 2016-02-03 CVE Published
- 2024-08-05 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-476: NULL Pointer Dereference
CAPEC
References (6)
| URL | Tag | Source |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2016/01/29/6 | Mailing List |
|
| http://www.openwall.com/lists/oss-security/2016/01/30/2 | Mailing List |
|
| https://bugzilla.redhat.com/show_bug.cgi?id=1301643 | Issue Tracking | |
| https://lists.debian.org/debian-lts-announce/2018/09/msg00007.html | Mailing List |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://lists.gnu.org/archive/html/qemu-devel/2016-01/msg05899.html | 2020-11-10 |
| URL | Date | SRC |
|---|---|---|
| https://security.gentoo.org/glsa/201604-01 | 2020-11-10 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Qemu Search vendor "Qemu" | Qemu Search vendor "Qemu" for product "Qemu" | <= 2.5.1.1 Search vendor "Qemu" for product "Qemu" and version " <= 2.5.1.1" | - |
Affected
| ||||||
| Qemu Search vendor "Qemu" | Qemu Search vendor "Qemu" for product "Qemu" | 2.6.0 Search vendor "Qemu" for product "Qemu" and version "2.6.0" | rc0 |
Affected
| ||||||
| Qemu Search vendor "Qemu" | Qemu Search vendor "Qemu" for product "Qemu" | 2.6.0 Search vendor "Qemu" for product "Qemu" and version "2.6.0" | rc1 |
Affected
| ||||||
| Qemu Search vendor "Qemu" | Qemu Search vendor "Qemu" for product "Qemu" | 2.6.0 Search vendor "Qemu" for product "Qemu" and version "2.6.0" | rc2 |
Affected
| ||||||
| Qemu Search vendor "Qemu" | Qemu Search vendor "Qemu" for product "Qemu" | 2.6.0 Search vendor "Qemu" for product "Qemu" and version "2.6.0" | rc3 |
Affected
| ||||||
| Qemu Search vendor "Qemu" | Qemu Search vendor "Qemu" for product "Qemu" | 2.6.0 Search vendor "Qemu" for product "Qemu" and version "2.6.0" | rc4 |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
| ||||||