CVE-2020-25084: Use After Free
Published Sep 25, 2020
·Updated
Last updated 24 July 2024
Other sources
QEMU 5.0.0 has a use-after-free in hw/usb/hcd-xhci.c because the usbpacketmap return value is not checked.
Affected Software
4 affected componentsFixes available
debian/qemu
1:5.2+dfsg-11+deb11u31:5.2+dfsg-11+deb11u21:7.2+dfsg-7+deb12u71:9.0.2+ds-21:9.1.0+ds-3
Qemu Qemu=5.0.0
Debian Debian Linux=9.0
Debian Debian Linux=10.0
Remediation
Patch Available
Event History
Sep 25, 2020
CVE Published
via MITRE·04:06 AM
Data Sourced
via MITRE·04:06 AM
Description
Jan 11, 2024
Data Sourced
via Launchpad·11:45 PM
Description
Sep 13, 2024
Data Sourced
via Ubuntu·02:13 PM
RemedyDescriptionSeverityAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2020-25084?
CVE-2020-25084 is classified as a moderate severity vulnerability due to its use-after-free condition in the QEMU USB handling code.
2
How do I fix CVE-2020-25084?
To mitigate CVE-2020-25084, update QEMU to a patched version such as 1:5.2+dfsg-11+deb11u3 or later.
3
What versions of QEMU are affected by CVE-2020-25084?
CVE-2020-25084 affects QEMU version 5.0.0 specifically.
4
Can CVE-2020-25084 cause system crashes?
Yes, CVE-2020-25084's use-after-free condition can potentially lead to system instability or crashes.
5
Is this vulnerability specific to any operating systems?
CVE-2020-25084 primarily affects Debian-based systems using the vulnerable QEMU versions.