Vulnerability Details : CVE-2022-1852
A NULL pointer dereference flaw was found in the Linux kernel’s KVM module, which can lead to a denial of service in the x86_emulate_insn in arch/x86/kvm/emulate.c. This flaw occurs while executing an illegal instruction in guest in the Intel CPU.
Vulnerability category: Memory CorruptionDenial of service
Products affected by CVE-2022-1852
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-1852
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 10 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-1852
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:N/I:N/A:P |
3.9
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2022-1852
-
The product dereferences a pointer that it expects to be valid but is NULL.Assigned by:
- nvd@nist.gov (Primary)
- secalert@redhat.com (Secondary)
References for CVE-2022-1852
-
https://bugzilla.redhat.com/show_bug.cgi?id=2089815
2089815 – (CVE-2022-1852) CVE-2022-1852 kernel: NULL pointer dereference in x86_emulate_insn may lead to DoSIssue Tracking;Third Party Advisory
-
https://github.com/torvalds/linux/commit/fee060cd52d69c114b62d1a2948ea9648b5131f9
KVM: x86: avoid calling x86 emulator without a decoded instruction · torvalds/linux@fee060c · GitHubPatch;Third Party Advisory
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