Security readout for executives and security teams
CVE-2020-13253 is a QEMU denial-of-service issue. A user inside a guest OS can trigger an out-of-bounds read in SD card controller handling and crash the QEMU process, disrupting the affected virtual machine. Exposure is most relevant on virtualization hosts running affected QEMU builds, especially where guest users are untrusted or multi-tenant. Distro advisories indicate QEMU package updates were issued, but the bundle does not provide a complete affected-version matrix. Treat this as a virtualization availability risk, not confirmed host compromise. Patch affected QEMU hosts during the next security maintenance window, faster for shared or externally managed guest environments. Mitigation focus: Apply QEMU security updates from the relevant Linux distribution or vendor advisory.; Check vendor guidance for affected package versions and fixed builds.; Prioritize multi-tenant or untrusted-guest virtualization hosts..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2020-13253 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg05835.htmlCVE reference · x_refsource_MISC
- https://bugzilla.redhat.com/show_bug.cgi?id=1838546CVE reference · x_refsource_CONFIRM
- USN-4467-1CVE reference · vendor-advisory, x_refsource_UBUNTU
- [debian-lts-announce] 20200913 [SECURITY] [DLA 2373-1] qemu security updateCVE reference · mailing-list, x_refsource_MLIST
- GLSA-202011-09CVE reference · vendor-advisory, x_refsource_GENTOO
- [debian-lts-announce] 20220905 [SECURITY] [DLA 3099-1] qemu security updateCVE reference · mailing-list, x_refsource_MLIST
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.