Vulnerability Details : CVE-2021-38198
Potential exploit
arch/x86/kvm/mmu/paging_tmpl.h in the Linux kernel before 5.12.11 incorrectly computes the access permissions of a shadow page, leading to a missing guest protection page fault.
Products affected by CVE-2021-38198
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Threat overview for CVE-2021-38198
Top countries where our scanners detected CVE-2021-38198
Top open port discovered on systems with this issue
49152
IPs affected by CVE-2021-38198 25,922
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2021-38198!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
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Exploit prediction scoring system (EPSS) score for CVE-2021-38198
0.02%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 3 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-38198
| 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 |
References for CVE-2021-38198
-
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11
Mailing List;Patch;Vendor Advisory
-
https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
[SECURITY] [DLA 2843-1] linux security updateMailing List;Third Party Advisory
-
https://github.com/torvalds/linux/commit/b1bd5cba3306691c771d558e94baa73e8b0b96b7
KVM: X86: MMU: Use the correct inherited permissions to get shadow page · torvalds/linux@b1bd5cb · GitHubExploit;Patch;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html
[SECURITY] [DLA 2785-1] linux-4.19 security updateMailing List;Third Party Advisory
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