Low severity · published Oct 6, 2020
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
3.2
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:L
Attack vector
Local
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 40% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Enterprise Linux · Redhat
7.0; 8.0; 8.0 · source: NVD
OP
Openstack Platform · Redhat
13.0 · source: NVD
QE
Qemu · Qemu
before 5.1.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-25743
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-25743
Mailing List
http://www.openwall.com/lists/oss-security/2020/09/29/1
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1881409
Patch
https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05967.html
Broken Link
https://ruhr-uni-bochum.sciebo.de/s/NNWP2GfwzYKeKwE?path=%2Fide_nullptr1b
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