DEBIAN-CVE-2019-20175
- Source
- https://security-tracker.debian.org/tracker/CVE-2019-20175
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2019-20175.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2019-20175
- Upstream
- Published
- 2019-12-31T04:15:10.503Z
- Modified
- 2025-11-19T01:08:52.369937Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
An issue was discovered in idedmacb() 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 SCSIIOCTLSEND_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.
- References
Affected packages
Debian:11 / qemu
Package
- Name
- qemu
- Purl
- pkg:deb/debian/qemu?arch=source
Debian:12 / qemu
Package
- Name
- qemu
- Purl
- pkg:deb/debian/qemu?arch=source
Debian:13 / qemu
Package
- Name
- qemu
- Purl
- pkg:deb/debian/qemu?arch=source
Debian:14 / qemu
Package
- Name
- qemu
- Purl
- pkg:deb/debian/qemu?arch=source