Executive Summary
| Summary | |
|---|---|
| Title | QEMU vulnerabilities |
| Informations | |||
|---|---|---|---|
| Name | USN-3826-1 | First vendor Publication | 2018-11-26 |
| Vendor | Ubuntu | Last vendor Modification | 2018-11-26 |
| Severity (Vendor) | N/A | Revision | N/A |
Security-Database Scoring CVSS v3
| Cvss vector : N/A | |||
|---|---|---|---|
| Overall CVSS Score | NA | ||
| Base Score | NA | Environmental Score | NA |
| impact SubScore | NA | Temporal Score | NA |
| Exploitabality Sub Score | NA | ||
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P) | |||
|---|---|---|---|
| Cvss Base Score | 7.5 | Attack Range | Network |
| Cvss Impact Score | 6.4 | Attack Complexity | Low |
| Cvss Expoit Score | 10 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.10 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS Summary: Several security issues were fixed in QEMU. Software Description: - qemu: Machine emulator and virtualizer Details: Daniel Shapira and Arash Tohidi discovered that QEMU incorrectly handled NE2000 device emulation. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2018-10839) It was discovered that QEMU incorrectly handled the Slirp networking back-end. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2018-11806) Fakhri Zulkifli discovered that the QEMU guest agent incorrectly handled certain QMP commands. An attacker could possibly use this issue to crash the QEMU guest agent, resulting in a denial of service. (CVE-2018-12617) Li Qiang discovered that QEMU incorrectly handled NVM Express Controller emulation. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. This issue only affected Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-16847) Daniel Shapira and Arash Tohidi discovered that QEMU incorrectly handled RTL8139 device emulation. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2018-17958) Daniel Shapira and Arash Tohidi discovered that QEMU incorrectly handled PCNET device emulation. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2018-17962) Daniel Shapira discovered that QEMU incorrectly handled large packet sizes. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2018-17963) It was discovered that QEMU incorrectly handled LSI53C895A device emulation. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2018-18849) Moguofang discovered that QEMU incorrectly handled the IPowerNV LPC controller. 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 18.04 LTS and Ubuntu 18.10. (CVE-2018-18954) Zhibin Hu discovered that QEMU incorrectly handled the Plan 9 File System support. An attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. (CVE-2018-19364) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.10: Ubuntu 18.04 LTS: Ubuntu 16.04 LTS: Ubuntu 14.04 LTS: After a standard system update you need to restart all QEMU virtual machines to make all the necessary changes. References: Package Information: |
Original Source
| Url : http://www.ubuntu.com/usn/USN-3826-1 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 33 % | CWE-190 | Integer Overflow or Wraparound (CWE/SANS Top 25) |
| 25 % | CWE-787 | Out-of-bounds Write (CWE/SANS Top 25) |
| 25 % | CWE-125 | Out-of-bounds Read |
| 8 % | CWE-416 | Use After Free |
| 8 % | CWE-119 | Failure to Constrain Operations within the Bounds of a Memory Buffer |
CPE : Common Platform Enumeration
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2019-01-03 | Name : The remote Fedora host is missing a security update. File : fedora_2018-74fb8b257b.nasl - Type : ACT_GATHER_INFO |
| 2019-01-03 | Name : The remote Fedora host is missing a security update. File : fedora_2018-87f2ace20d.nasl - Type : ACT_GATHER_INFO |
| 2018-12-01 | Name : The remote Debian host is missing a security update. File : debian_DLA-1599.nasl - Type : ACT_GATHER_INFO |
| 2018-11-13 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-4338.nasl - Type : ACT_GATHER_INFO |
| 2018-09-27 | Name : The remote EulerOS host is missing multiple security updates. File : EulerOS_SA-2018-1313.nasl - Type : ACT_GATHER_INFO |
| 2018-09-27 | Name : The remote EulerOS host is missing multiple security updates. File : EulerOS_SA-2018-1314.nasl - Type : ACT_GATHER_INFO |
| 2018-09-19 | Name : The remote Amazon Linux 2 host is missing a security update. File : al2_ALAS-2018-1073.nasl - Type : ACT_GATHER_INFO |
| 2018-09-07 | Name : The remote Amazon Linux AMI host is missing a security update. File : ala_ALAS-2018-1073.nasl - Type : ACT_GATHER_INFO |
| 2018-08-21 | Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2018-2462.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2019-03-21 21:21:44 |
|
| 2018-12-14 00:21:12 |
|
| 2018-11-26 17:19:49 |
|
