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NVD / CVE Program· CNA XEN

CVE-2024-31143: double unlock in x86 guest IRQ handling

HighCVSS 7.5 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 30/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.50% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. Special conditions such as timing or configuration are required.
  • Fixed version: xen (Alpine:v3.17) 4.16.6-r1; xen (Alpine:v3.18) 4.17.5-r0; xen (Alpine:v3.19) 4.18.3-r0.

Low priority for now. Upgrade to xen (Alpine:v3.17) 4.16.6-r1; xen (Alpine:v3.18) 4.17.5-r0; xen (Alpine:v3.19) 4.18.3-r0 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

An optional feature of PCI MSI called "Multiple Message" allows a device to use multiple consecutive interrupt vectors. Unlike for MSI-X, the setting up of these consecutive vectors needs to happen all in one go. In this handling an error path could be taken in different situations, with or without a particular lock held. This error path wrongly releases the lock even when it is not currently held.

Published
Jul 18, 2024
Updated
Jun 17, 2026
EPSS
0.5% · 43th percentile

Report tools

JSON

Action score

30

Monitor

Low priority for now.

CVSS
30 / 40 · 7.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2024-31143

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
xenxen

Versions reported by the vendor

Affected version ranges reported by the assigning authority (XEN). Independent of NVD's CPE analysis and usually ahead of it.

  • Xen Xen

    • consult Xen advisory XSA-458unknown

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • xen xen4.4.0 and later

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Alpine:v3.17xenfrom 4.4.0 · before 4.16.6-r14.16.6-r1
Alpine:v3.18xenfrom 4.4.0 · before 4.17.5-r04.17.5-r0
Alpine:v3.19xenfrom 4.4.0 · before 4.18.3-r04.18.3-r0
Alpine:v3.21xenfrom 4.4.0 · before 4.19.0-r04.19.0-r0
Debian:12xenbefore 4.17.5+23-ga4e5191dc0-14.17.5+23-ga4e5191dc0-1
Debian:13xenbefore 4.19.1-14.19.1-1
openSUSE:Leap 15.6xenbefore 4.18.2_06-150600.3.3.14.18.2_06-150600.3.3.1
openSUSE:Leap Micro 5.5xenbefore 4.17.4_04-150500.3.33.14.17.4_04-150500.3.33.1
openSUSE:Tumbleweedxenbefore 4.18.2_06-2.14.18.2_06-2.1
SUSE:Linux Enterprise High Performance Computing 15 SP2-LTSSxenbefore 4.13.5_12-150200.3.93.14.13.5_12-150200.3.93.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSSxenbefore 4.14.6_16-150300.3.75.14.14.6_16-150300.3.75.1
SUSE:Linux Enterprise Micro 5.3xenbefore 4.16.6_04-150400.4.62.14.16.6_04-150400.4.62.1
SUSE:Linux Enterprise Micro 5.5xenbefore 4.17.4_04-150500.3.33.14.17.4_04-150500.3.33.1
SUSE:Linux Enterprise Module for Basesystem 15 SP6xenbefore 4.18.2_06-150600.3.3.14.18.2_06-150600.3.3.1
SUSE:Linux Enterprise Software Development Kit 12 SP5xenbefore 4.12.4_50-3.112.14.12.4_50-3.112.1

Same product

xen: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-10921The grant-table feature in Xen through 4.8.x does not ensure sufficient type counts for a GNTMAP_device_map and GNTMAP_host_map mapping…
    41Plan
  • CVE-2017-10920The grant-table feature in Xen through 4.8.x mishandles a GNTMAP_device_map and GNTMAP_host_map mapping, when followed by only a…
    41Plan
  • CVE-2017-10918Xen through 4.8.x does not validate memory allocations during certain P2M operations, which allows guest OS users to obtain privileged host…
    41Plan

Published before and after this one in the same product

  • ← EarlierCVE-2023-46842May 16, 2024 · x86 HVM hypercalls may trigger Xen bug check
    29Monitor
  • ← EarlierCVE-2024-31142May 16, 2024 · x86: Incorrect logic for BTC/SRSO mitigations
    35Monitor
  • Later →CVE-2024-31145Sep 25, 2024 · error handling in x86 IOMMU identity mapping
    30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
alpine:xen4.16.6-r1 · Alpine:v3.17Package registry (OSV)
debian:xen4.17.5+23-ga4e5191dc0-1 · Debian:12Package registry (OSV)
opensuse:xen4.18.2_06-150600.3.3.1 · openSUSE:Leap 15.6Package registry (OSV)
suse:xen4.18.2_06-150600.3.3.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP6Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Not on record for this CVE: EPSS history · patch commit or PR link · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
High
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-832 · Unlock of a Resource that is not Locked

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records