CVE-2019-20175
CVE-2019-20175
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
An issue was discovered in ide_dma_cb() in hw/ide/core.c in QEMU 2.4.0 through 4.2.0. The guest system can crash the QEMU process in the host system via a special SCSI_IOCTL_SEND_COMMAND. It hits an assertion that implies that the size of successful DMA transfers there must be a multiple of 512 (the size of a sector). NOTE: a member of the QEMU security team disputes the significance of this issue because a "privileged guest user has many ways to cause similar DoS effect, without triggering this assert.
CVSS 7.5 · Alta · EPSS 3,4% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: system
Productos y versiones afectados
n/a
- Versiones
- n/a: Afectada
Sin corrección publicada
qemu Debian:12
- Intervalos de versiones afectados
- ECOSYSTEM: < 1:5.0-1
Actualiza a 1:5.0-1
qemu Debian:13
- Intervalos de versiones afectados
- ECOSYSTEM: < 1:5.0-1
Actualiza a 1:5.0-1
qemu Debian:14
- Intervalos de versiones afectados
- ECOSYSTEM: < 1:5.0-1
Actualiza a 1:5.0-1
Fuentes originales
- https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg01651.html
- https://lists.nongnu.org/archive/html/qemu-devel/2019-11/msg00597.html
- https://lists.nongnu.org/archive/html/qemu-devel/2019-11/msg02165.html
- https://www.mail-archive.com/qemu-devel%40nongnu.org/msg667396.html
- https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg03869.html
- https://nvd.nist.gov/vuln/detail/CVE-2019-20175