Vulnerability Details : CVE-2020-25743
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.
Vulnerability category: Memory Corruption
Products affected by CVE-2020-25743
- cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:-:*:*:*
- cpe:2.3:a:redhat:openstack_platform:13.0:*:*:*:*:*:*:*
- cpe:2.3:a:qemu:qemu:*:*:*:*:*:*:*:*
Threat overview for CVE-2020-25743
Top countries where our scanners detected CVE-2020-25743
Top open port discovered on systems with this issue
53
IPs affected by CVE-2020-25743 693,285
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2020-25743!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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Exploit prediction scoring system (EPSS) score for CVE-2020-25743
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 12 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-25743
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST | |
3.2
|
LOW | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L |
1.5
|
1.4
|
NIST |
CWE ids for CVE-2020-25743
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-25743
-
http://www.openwall.com/lists/oss-security/2020/09/29/1
oss-security - QEMU: NULL pointer derefrence issuesMailing List;Patch;Third Party Advisory
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https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05967.html
Re: [PATCH v2] hw/ide: check null block before _cancel_dma_syncPatch;Third Party Advisory
-
https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Fide_nullptr1b
scieboBroken Link
-
https://bugzilla.redhat.com/show_bug.cgi?id=1881409
1881409 – (CVE-2020-25743) CVE-2020-25743 QEMU: ide: null pointer dereference while cancelling i/o operationIssue Tracking;Patch;Third Party Advisory
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