Quick Emulator (QEMU), compiled with the PC System Emulator with multiboot feature support, is vulnerable to an OOB r/w memory access issue. The issue could occur while loading a kernel image during the guest boot, if mh_load_end_addr address is greater than the mh_bss_end_addr address. A user or process could use this flaw to potentially achieve arbitrary code execution on a host.
Find out more about CVE-2018-7550 from the MITRE CVE dictionary dictionary and NIST NVD.
| Base Score | 6.2 |
|---|---|
| Base Metrics | AV:L/AC:H/Au:N/C:C/I:C/A:C |
| Access Vector | Local |
| Access Complexity | High |
| Authentication | None |
| Confidentiality Impact | Complete |
| Integrity Impact | Complete |
| Availability Impact | Complete |
| CVSS3 Base Score | 7.8 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
| Attack Vector | Local |
| Attack Complexity | High |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Changed |
| Confidentiality | High |
| Integrity Impact | High |
| Availability Impact | High |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat OpenStack Platform 8.0 (Liberty) (qemu-kvm-rhev) | RHSA-2018:1646 | 2018-05-22 |
| Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts (qemu-kvm-rhev) | RHSA-2018:1369 | 2018-05-10 |
| Red Hat OpenStack Platform 12.0 (qemu-kvm-rhev) | RHSA-2018:1643 | 2018-05-22 |
| Red Hat OpenStack Platform 10 (qemu-kvm-rhev) | RHSA-2018:1644 | 2018-05-22 |
| Red Hat Enterprise Linux 7 (qemu-kvm) | RHSA-2018:2462 | 2018-08-16 |
| Red Hat OpenStack Platform 9.0 (qemu-kvm-rhev) | RHSA-2018:1645 | 2018-05-22 |
| Platform | Package | State |
|---|---|---|
| Red Hat OpenStack Platform 11.0 (Ocata) | qemu-kvm-rhev | Will not fix |
| Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 | qemu-kvm-rhev | Will not fix |
| Red Hat Enterprise Linux 7 | qemu-kvm-ma | Affected |
| Red Hat Enterprise Linux 6 | qemu-kvm | Not affected |
| Red Hat Enterprise Linux 5 | kvm | Not affected |
| Red Hat Enterprise Linux 5 | xen | Not affected |
Vulmon