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CVE Record

CVE-2017-2633: An out-of-bounds memory access issue was found in Quick Emulator (QEMU) before 1.7.2 in the VNC display dri...

An out-of-bounds memory access issue was found in Quick Emulator (QEMU) before 1.7.2 in the VNC display driver. This flaw could occur while refreshing the VNC display surface area in the 'vnc_refresh_server_surface'. A user inside a guest could use this flaw to crash the QEMU process.

MediumCVSS 5.4Not KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

This vulnerability affects QEMU’s VNC display handling. A user already inside a virtual machine could trigger memory corruption during display refresh, potentially crashing the QEMU process and disrupting that VM or service. Exposure is most likely on virtualization hosts running affected QEMU builds with VNC display functionality. The bundle names QEMU and Red Hat advisories, but does not fully enumerate all downstream distributions or supported package versions. Handle through normal vulnerability remediation unless the organization runs many legacy QEMU hosts or high-availability VM workloads. Business risk is mainly service disruption from a guest-triggered QEMU crash, with no active exploitation evidence in the provided sources. Mitigation focus: Apply vendor-supported QEMU updates that include the referenced upstream fixes.; Use Red Hat errata packages where Red Hat distributions are affected.; If patching is blocked, seek vendor guidance for supported interim controls..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-120: Exact CWE lookup

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cve · low confidence lookup

CVE-2017-2633 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.4 (3.0)
Known Exploited
No
Published

Vector: CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
8Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.4CVSS 3.0MediumCVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L2.32.7Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

5.4Medium
CVSS 3.0 vector shape for CVE-2017-2633Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
QEMUQemu:1.7.2Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-120 · source CWE mapping

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.