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Vulnerability details: VCID-tdut-5rgt-v3dp
Vulnerability ID VCID-tdut-5rgt-v3dp
Aliases CVE-2024-43819
Summary In the Linux kernel, the following vulnerability has been resolved: kvm: s390: Reject memory region operations for ucontrol VMs This change rejects the KVM_SET_USER_MEMORY_REGION and KVM_SET_USER_MEMORY_REGION2 ioctls when called on a ucontrol VM. This is necessary since ucontrol VMs have kvm->arch.gmap set to 0 and would thus result in a null pointer dereference further in. Memory management needs to be performed in userspace and using the ioctls KVM_S390_UCAS_MAP and KVM_S390_UCAS_UNMAP. Also improve s390 specific documentation for KVM_SET_USER_MEMORY_REGION and KVM_SET_USER_MEMORY_REGION2. [frankja@linux.ibm.com: commit message spelling fix, subject prefix fix]
Status Published
Exploitability 0.5
Weighted Severity 5.0
Risk 2.5
Affected and Fixed Packages Package Details
Weaknesses (0)
There are no known CWE.
System Score Found at
cvssv3 5.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2024-43819.json
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2024-43819
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2024-43819
epss 0.00011 https://api.first.org/data/v1/epss?cve=CVE-2024-43819
cvssv3.1 5.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
ssvc Track https://git.kernel.org/stable/c/49c9945c054df4c22008e2bf87ca74d3e2507aa6
ssvc Track https://git.kernel.org/stable/c/7816e58967d0e6cadce05c8540b47ed027dc2499
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2024-43819.json
https://api.first.org/data/v1/epss?cve=CVE-2024-43819
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-43819
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
2305477 https://bugzilla.redhat.com/show_bug.cgi?id=2305477
49c9945c054df4c22008e2bf87ca74d3e2507aa6 https://git.kernel.org/stable/c/49c9945c054df4c22008e2bf87ca74d3e2507aa6
7816e58967d0e6cadce05c8540b47ed027dc2499 https://git.kernel.org/stable/c/7816e58967d0e6cadce05c8540b47ed027dc2499
USN-7154-1 https://usn.ubuntu.com/7154-1/
USN-7154-2 https://usn.ubuntu.com/7154-2/
USN-7155-1 https://usn.ubuntu.com/7155-1/
USN-7156-1 https://usn.ubuntu.com/7156-1/
USN-7196-1 https://usn.ubuntu.com/7196-1/
No exploits are available.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2024-43819.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-10T16:09:06Z/ Found at https://git.kernel.org/stable/c/49c9945c054df4c22008e2bf87ca74d3e2507aa6
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-09-10T16:09:06Z/ Found at https://git.kernel.org/stable/c/7816e58967d0e6cadce05c8540b47ed027dc2499
Exploit Prediction Scoring System (EPSS)
Percentile 0.01478
EPSS Score 0.00011
Published At June 5, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-06-04T16:51:18.889018+00:00 Debian Importer Import https://security-tracker.debian.org/tracker/data/json 38.6.0