Executive Summary
| Summary | |
|---|---|
| Title | QEMU vulnerabilities |
| Informations | |||
|---|---|---|---|
| Name | USN-3923-1 | First vendor Publication | 2019-03-27 |
| Vendor | Ubuntu | Last vendor Modification | 2019-03-27 |
| 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:N/I:N/A:P) | |||
|---|---|---|---|
| Cvss Base Score | 5 | Attack Range | Network |
| Cvss Impact Score | 2.9 | 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: Michael Hanselmann discovered that QEMU incorrectly handled the Media Transfer Protocol (MTP). An attacker inside the guest could use this issue to read or write arbitrary files and cause a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.10. (CVE-2018-16867) Michael Hanselmann discovered that QEMU incorrectly handled the Media Transfer Protocol (MTP). An attacker inside the guest could use this issue to read arbitrary files, contrary to expectations. This issue only affected Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-16872) 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-2018-19489) Li Quang and Saar Amar discovered multiple issues in the QEMU PVRDMA device. An attacker inside the guest could use these issues to cause a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.10. These issues were resolved by disabling PVRDMA support in Ubuntu 18.10. (CVE-2018-20123, CVE-2018-20124, CVE-2018-20125, CVE-2018-20126, CVE-2018-20191, CVE-2018-20216) Michael Hanselmann discovered that QEMU incorrectly handled certain i2c commands. A local attacker could possibly use this issue to read QEMU process memory. This issue only affected Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2019-3812) It was discovered that QEMU incorrectly handled the Slirp networking back-end. 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. (CVE-2019-6778) 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-3923-1 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 18 % | CWE-772 | Missing Release of Resource after Effective Lifetime |
| 18 % | CWE-476 | NULL Pointer Dereference |
| 18 % | CWE-362 | Race Condition |
| 9 % | CWE-787 | Out-of-bounds Write (CWE/SANS Top 25) |
| 9 % | CWE-367 | Time-of-check Time-of-use (TOCTOU) Race Condition |
| 9 % | CWE-252 | Unchecked Return Value |
| 9 % | CWE-125 | Out-of-bounds Read |
| 9 % | CWE-119 | Failure to Constrain Operations within the Bounds of a Memory Buffer |
CPE : Common Platform Enumeration
Alert History
| Date | Informations |
|---|---|
| 2019-03-27 17:18:38 |
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