CVE-2021-3409
Description
The patch for CVE-2020-17380/CVE-2020-25085 was found to be ineffective, thus making QEMU vulnerable to the out-of-bounds read/write access issues previously found in the SDHCI controller emulation code. This flaw allows a malicious privileged guest to crash the QEMU process on the host, resulting in a denial of service or potential code execution. QEMU up to (including) 5.2.0 is affected by this.
References
CvssV3 impact
BaseSeverity | MEDIUM |
ConfidentialityImpact | LOW |
AttackComplexity | LOW |
Scope | CHANGED |
AttackVector | LOCAL |
AvailabilityImpact | LOW |
IntegrityImpact | LOW |
PrivilegesRequired | HIGH |
BaseScore | 5.7 |
VectorString | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L |
Version | 3.1 |
UserInteraction | NONE |
CvssV2 impact
AccessComplexity | LOW |
ConfidentialityImpact | PARTIAL |
AvailabilityImpact | PARTIAL |
IntegrityImpact | PARTIAL |
BaseScore | 4.6 |
VectorString | AV:L/AC:L/Au:N/C:P/I:P/A:P |
Version | 2.0 |
AccessVector | LOCAL |
Authentication | NONE |