PRIOn knowledge basePRION:CVE-2021-43056Design/Logic Flaw
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
5.8 Medium
AI Score
Confidence
High
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.0004 Low
EPSS
Percentile
12.3%
An issue was discovered in the Linux kernel for powerpc before 5.14.15. It allows a malicious KVM guest to crash the host, when the host is running on Power8, due to an arch/powerpc/kvm/book3s_hv_rmhandlers.S implementation bug in the handling of the SRR1 register values.
| CPE | Name | Operator | Version |
|---|---|---|---|
| fedora | eq | 33 | |
| fedora | eq | 34 | |
| fedora | eq | 35 | |
| linux_kernel | ge | 5.2 | |
| linux_kernel | lt | 5.4.15 |
References
www.openwall.com/lists/oss-security/2021/10/28/1
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.15
git.kernel.org/linus/cdeb5d7d890e14f3b70e8087e745c4a6a7d9f337
lists.fedoraproject.org/archives/list/[email protected]/message/AA7EAPPKWG4LMTQQLNNSKATY6ST2KQFE/
lists.fedoraproject.org/archives/list/[email protected]/message/BBM4FP3IT3JZ2O7EBS7TEOG657N4ZGRE/
lists.fedoraproject.org/archives/list/[email protected]/message/RRAIS3PG4EV5WFLYESR6FXWM4BJJGWVA/
lore.kernel.org/linuxppc-dev/[email protected]/T/
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
5.8 Medium
AI Score
Confidence
High
4.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
0.0004 Low
EPSS
Percentile
12.3%