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arch/x86/kvm/svm/nested.c in the Linux kernel before 5.11.12 has a use-after-free in which an AMD KVM guest can bypass access control on host OS MSRs when there are nested guests aka CID-a58d9166a756. This occurs because of a TOCTOU race condition associated with a VMCB12 double fetch in nested_svm_vmrun.
| Reporter | Title | Published | Views | Family All 92 |
|---|---|---|---|---|
 | CVE-2021-29657 affecting package kernel 5.10.189.1-1 | 9 Sep 202115:03 | – | cbl_mariner |
| CVE-2021-29657 affecting package kernel for versions less than 5.10.78.1-1 | 9 Apr 202206:52 | – | cbl_mariner |
 | CVE-2021-29657 | 16 Dec 202207:26 | – | circl |
 | Linux kernel 安全漏洞 | 7 Apr 202100:00 | – | cnnvd |
 | Linux kernel security bypass vulnerability (CNVD-2021-60525) | 23 Jul 202100:00 | – | cnvd |
 | CVE-2021-29657 | 22 Jul 202116:44 | – | cve |
 | CVE-2021-29657 | 22 Jul 202116:44 | – | cvelist |
 | CVE-2021-29657 | 22 Jul 202116:44 | – | debiancve |
 | EUVD-2021-16131 | 7 Oct 202500:30 | – | euvd |
 | K31700032: Linux kernel vulnerability CVE-2021-29657 | 21 Feb 202318:06 | – | f5 |
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16 Dec 2021 08:00Current
7High risk
Vulners AI Score7
CVSS 26.9
CVSS 3.17.4
EPSS0.00047