Описание
The net_checksum_calculate function in net/checksum.c in QEMU allows local guest OS users to cause a denial of service (out-of-bounds heap read and crash) via the payload length in a crafted packet.
An out-of-bounds read-access flaw was found in the QEMU emulator built with IP checksum routines. The flaw could occur when computing a TCP/UDP packet's checksum, because a QEMU function used the packet's payload length without checking against the data buffer's size. A user inside a guest could use this flaw to crash the QEMU process (denial of service).
Отчет
This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | kvm | Will not fix | ||
| Red Hat Enterprise Linux 6 | qemu-kvm-rhev | Affected | ||
| Red Hat OpenStack Platform 10 (Newton) | qemu-kvm-rhev | Not affected | ||
| Red Hat OpenStack Platform 11 (Ocata) | qemu-kvm-rhev | Not affected | ||
| Red Hat Enterprise Linux 6 | qemu-kvm | Fixed | RHSA-2017:0309 | 23.02.2017 |
| Red Hat Enterprise Linux 7 | qemu-kvm | Fixed | RHSA-2017:0083 | 17.01.2017 |
| Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 6 | qemu-kvm-rhev | Fixed | RHSA-2017:0334 | 27.02.2017 |
| Red Hat Enterprise Linux OpenStack Platform 5.0 (Icehouse) for RHEL 7 | qemu-kvm-rhev | Fixed | RHSA-2016:2706 | 14.11.2016 |
| Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for RHEL 7 | qemu-kvm-rhev | Fixed | RHSA-2016:2705 | 14.11.2016 |
| Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 | qemu-kvm-rhev | Fixed | RHSA-2016:2704 | 14.11.2016 |
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Дополнительная информация
Статус:
EPSS
4.7 Medium
CVSS3
4.3 Medium
CVSS2
Связанные уязвимости
The net_checksum_calculate function in net/checksum.c in QEMU allows local guest OS users to cause a denial of service (out-of-bounds heap read and crash) via the payload length in a crafted packet.
The net_checksum_calculate function in net/checksum.c in QEMU allows local guest OS users to cause a denial of service (out-of-bounds heap read and crash) via the payload length in a crafted packet.
The net_checksum_calculate function in net/checksum.c in QEMU allows l ...
The net_checksum_calculate function in net/checksum.c in QEMU allows local guest OS users to cause a denial of service (out-of-bounds heap read and crash) via the payload length in a crafted packet.
ELSA-2017-0083: qemu-kvm security and bug fix update (LOW)
EPSS
4.7 Medium
CVSS3
4.3 Medium
CVSS2