CVE-2020-25743
LOW
3.2
CVSS Score
Published: October 6, 2020 at 02:15 PM UTC
Updated: June 17, 2026 at 03:07 AM UTC
3 products affected across 2 vendorsEnterprise LinuxQEMUOpenStack Platform
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Severity
LOW3.2
Exploit prediction
EPSS 0.5%
Description
hw/ide/pci.c in QEMU before 5.1.1 can trigger a NULL pointer dereference because it lacks a pointer check before an ide_cancel_dma_sync call.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 5.1.1
Affected range stops below 5.1.1, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (4)
Mailing Listx_refsource_MLISTx_refsource_CONFIRMPatchThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2020/09/29/1x_refsource_MISCIssue TrackingPatchThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1881409x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05967.htmlx_refsource_MISCBroken Link
Source: [email protected]
https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Fide_nullptr1bCVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- HIGH
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- LOW
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-476
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