Debian Security Bug TrackerDEBIANCVE:CVE-2021-20255CVE-2021-20255
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
17.8%
A stack overflow via an infinite recursion vulnerability was found in the eepro100 i8255x device emulator of QEMU. This issue occurs while processing controller commands due to a DMA reentry issue. This flaw allows a guest user or process to consume CPU cycles or crash the QEMU process on the host, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | qemu | <=Â 1:7.2+dfsg-7+deb12u5 | qemu_1:7.2+dfsg-7+deb12u5_all.deb |
| Debian | 11 | all | qemu | <=Â 1:5.2+dfsg-11+deb11u3 | qemu_1:5.2+dfsg-11+deb11u3_all.deb |
| Debian | 10 | all | qemu | <=Â 1:3.1+dfsg-8+deb10u8 | qemu_1:3.1+dfsg-8+deb10u8_all.deb |
| Debian | 999 | all | qemu | <Â 1:8.1.0+ds-1 | qemu_1:8.1.0+ds-1_all.deb |
| Debian | 13 | all | qemu | <Â 1:8.1.0+ds-1 | qemu_1:8.1.0+ds-1_all.deb |
Related
5.5 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.1 Low
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:L/AC:L/Au:N/C:N/I:N/A:P
0.001 Low
EPSS
Percentile
17.8%