The dhcp_decode function in slirp/bootp.c in QEMU (aka Quick Emulator) allows local guest OS users to cause a denial of service (out-of-bounds read and QEMU process crash) via a crafted DHCP options string.
The MITRE CVE dictionary describes this issue as:
Find out more about CVE-2017-11434 from the MITRE CVE dictionary dictionary and NIST NVD.
NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.
| Base Score | 2.9 |
|---|---|
| Base Metrics | AV:A/AC:M/Au:N/C:N/I:N/A:P |
| Access Vector | Adjacent Network |
| Access Complexity | Medium |
| Authentication | None |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | Partial |
NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.
| CVSS3 Base Score | 4.3 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| Attack Vector | Adjacent Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity Impact | None |
| Availability Impact | Low |
Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).
| Platform | Package | State |
|---|---|---|
| Red Hat OpenStack Platform 9.0 | qemu-kvm-rhev | Will not fix |
| Red Hat OpenStack Platform 8.0 (Liberty) | qemu-kvm-rhev | Will not fix |
| Red Hat OpenStack Platform 12.0 | qemu-kvm-rhev | Will not fix |
| Red Hat OpenStack Platform 11.0 (Ocata) | qemu-kvm-rhev | Will not fix |
| Red Hat OpenStack Platform 10 | 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 OpenStack Platform 6.0 (Juno) for RHEL 7 | qemu-kvm-rhev | Will not fix |
| Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) | qemu-kvm-rhev | Will not fix |
| Red Hat Enterprise Linux 7 | qemu-kvm | Will not fix |
| Red Hat Enterprise Linux 7 | qemu-kvm-rhev | Will not fix |
| Red Hat Enterprise Linux 6 | qemu-kvm | Will not fix |
| Red Hat Enterprise Linux 5 | kvm | Will not fix |
| Red Hat Enterprise Linux 5 | xen | Not affected |
Vulmon