Is CVE-2019-20175 in the CISA KEV catalog?

No. CVE-2019-20175 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2019-20175?

CVE-2019-20175 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2019-20175?

CVE-2019-20175 has an EPSS score of 3.36% (87th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2019-20175?

Upgrade qemu on debian 11 to 1:5.0-1 or later.

CVE & CISA-KEV Catalog

CVE-2019-20175

HIGHEPSS 87th pctl

7.5

CVSS v3

NVD

Description

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.

CWE-754

How to fix

Remediation Available

qemuDebian

Fixed in:1:5.0-1CVE-2019-20175

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

3.36%probability of exploitation in 30 days

87thpercentile

Elevated risk: more likely to be exploited than 87% of all known CVEs.

References

Patch1

lists.nongnu.org

Exploit1

lists.nongnu.org

Third-Party Advisory2

Other references1

mail-archive.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.