Executive Summary
| Summary | |
|---|---|
| Title | QEMU vulnerabilities |
| Informations | |||
|---|---|---|---|
| Name | USN-4191-1 | First vendor Publication | 2019-11-14 |
| Vendor | Ubuntu | Last vendor Modification | 2019-11-14 |
| 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:S/C:P/I:P/A:P) | |||
|---|---|---|---|
| Cvss Base Score | 6.5 | Attack Range | Network |
| Cvss Impact Score | 6.4 | Attack Complexity | Low |
| Cvss Expoit Score | 8 | Authentication | Requires single instance |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 19.10 - Ubuntu 19.04 - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: Several security issues were fixed in QEMU. Software Description: - qemu: Machine emulator and virtualizer Details: It was discovered that the LSI SCSI adapter emulator implementation in QEMU did not properly validate executed scripts. A local attacker could use this to cause a denial of service. (CVE-2019-12068) Sergej Schumilo, Cornelius Aschermann and Simon Wörner discovered that the qxl paravirtual graphics driver implementation in QEMU contained a null pointer dereference. A local attacker in a guest could use this to cause a denial of service. (CVE-2019-12155) Riccardo Schirone discovered that the QEMU bridge helper did not properly validate network interface names. A local attacker could possibly use this to bypass ACL restrictions. (CVE-2019-13164) It was discovered that a heap-based buffer overflow existed in the SLiRP networking implementation of QEMU. A local attacker in a guest could use this to cause a denial of service or possibly execute arbitrary code in the host. (CVE-2019-14378) It was discovered that a use-after-free vulnerability existed in the SLiRP networking implementation of QEMU. A local attacker in a guest could use this to cause a denial of service. (CVE-2019-15890) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 19.10: Ubuntu 19.04: Ubuntu 18.04 LTS: Ubuntu 16.04 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-4191-1 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 25 % | CWE-787 | Out-of-bounds Write (CWE/SANS Top 25) |
| 25 % | CWE-755 | Improper Handling of Exceptional Conditions |
| 25 % | CWE-476 | NULL Pointer Dereference |
| 25 % | CWE-416 | Use After Free |
CPE : Common Platform Enumeration
Alert History
| Date | Informations |
|---|---|
| 2019-11-14 05:19:07 |
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