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Fencer Vulns
medium 5.5

CVE-2019-6501 json

In QEMU 3.1, scsi_handle_inquiry_reply in hw/scsi/scsi-generic.c allows out-of-bounds write and read operations.

published 2019-03-17 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-16060

cvss
5.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 46%
public exploits
0
none known

Summary

In QEMU 3.1, scsi_handle_inquiry_reply in hw/scsi/scsi-generic.c allows out-of-bounds write and read operations.

Patch / fix

  • qemu Debian 14, Debian 13, Debian 12 1:3.1+dfsg-3

debian advisories DEBIAN-CVE-2019-6501

  • qemu-kvm-rhev rhev manager 4.3, RHEL 7, openstack 14 +2 more 10:2.12.0-33.el7
  • qemu-img-rhev rhev manager 4.3, RHEL 7, openstack 14 +2 more 10:2.12.0-33.el7
  • qemu-kvm-tools-rhev rhev manager 4.3, RHEL 7, openstack 14 +2 more 10:2.12.0-33.el7
  • qemu-kvm-common-rhev rhev manager 4.3, RHEL 7, openstack 14 +2 more 10:2.12.0-33.el7
  • qemu-kvm-ma RHEL 7 10:2.12.0-33.el7
  • qemu-img-ma RHEL 7 10:2.12.0-33.el7
  • qemu-kvm-tools-ma RHEL 7 10:2.12.0-33.el7
  • qemu-kvm-common-ma RHEL 7 10:2.12.0-33.el7

red hat advisories RHSA-2019:2425RHSA-2019:2166RHSA-2019:2553

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-6501 updated cvss 2.8

QEMU: scsi-generic: possible OOB access while handling inquiry request

  • Red Hat OpenStack Platform 8 (Liberty) qemu-img-rhev, qemu-kvm-rhev, libcacard-rhev, qemu-kvm-tools-rhev, libcacard-devel-rhev, libcacard-tools-rhev, +1 more Red Hat OpenStack Platform 9 (Mitaka) qemu-img-rhev, qemu-kvm-rhev, libcacard-rhev, qemu-kvm-tools-rhev, libcacard-devel-rhev, libcacard-tools-rhev, +1 more
    affected: no fix available “Fix deferred”
  • Red Hat Enterprise Linux Server (v. 7) qemu-img-ma 2.12.0-33.el7, qemu-kvm-ma 2.12.0-33.el7, qemu-kvm-tools-ma 2.12.0-33.el7, qemu-kvm-common-ma 2.12.0-33.el7 Red Hat Enterprise Linux Server Optional (v. 7) qemu-kvm-ma 2.12.0-33.el7, qemu-kvm-tools-ma 2.12.0-33.el7, qemu-kvm-common-ma 2.12.0-33.el7
    fixed: vendor fix RHSA-2019:2166
  • Red Hat OpenStack Platform 10.0 qemu-img-rhev 2.12.0-33.el7, qemu-kvm-rhev 2.12.0-33.el7, qemu-kvm-tools-rhev 2.12.0-33.el7, qemu-kvm-common-rhev 2.12.0-33.el7 Red Hat OpenStack Platform 13.0 qemu-img-rhev 2.12.0-33.el7, qemu-kvm-rhev 2.12.0-33.el7, qemu-kvm-tools-rhev 2.12.0-33.el7, qemu-kvm-common-rhev 2.12.0-33.el7 Red Hat OpenStack Platform 14.0 qemu-img-rhev 2.12.0-33.el7, qemu-kvm-rhev 2.12.0-33.el7, qemu-kvm-tools-rhev 2.12.0-33.el7, qemu-kvm-common-rhev 2.12.0-33.el7
    fixed: vendor fix RHSA-2019:2425
  • Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts qemu-img-rhev 2.12.0-33.el7, qemu-kvm-rhev 2.12.0-33.el7, qemu-kvm-tools-rhev 2.12.0-33.el7, qemu-kvm-common-rhev 2.12.0-33.el7 Red Hat RHV-M 4.3 qemu-img-rhev 2.12.0-33.el7, qemu-kvm-rhev 2.12.0-33.el7, qemu-kvm-tools-rhev 2.12.0-33.el7, qemu-kvm-common-rhev 2.12.0-33.el7
    fixed: vendor fix RHSA-2019:2553
  • Red Hat Enterprise Linux 5 kvm, xen Red Hat Enterprise Linux 6 qemu-img, qemu-kvm, qemu-kvm-tools, qemu-guest-agent, qemu-guest-agent-win32 Red Hat Enterprise Linux 7 qemu-img, qemu-kvm, libcacard, qemu-kvm-tools, libcacard-tools, qemu-kvm-common, +1 more Red Hat Enterprise Linux 8 qemu-img, qemu-kvm, qemu-kvm-core, qemu-kvm-tests, qemu-kvm-common, qemu-guest-agent, +8 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • lists.gnu.org https://lists.gnu.org/archive/html/qemu-devel/2019-01/msg02324.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.