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CVE-2023-2124· NVD / CVE Program· CNA redhat

An out-of-bounds memory access flaw was found in the Linux kernel’s XFS file system in how a user restores an XFS image after failure (with

Noroxi assessment

Priority: Monitor (action score 31/100)

  • 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: 0.48% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: bpftool (AlmaLinux:8) 4.18.0-477.21.1.el8_8; kernel (AlmaLinux:8) 4.18.0-477.21.1.el8_8; kernel-abi-stablelists (AlmaLinux:8) 4.18.0-477.21.1.el8_8.

Low priority for now. Upgrade to bpftool (AlmaLinux:8) 4.18.0-477.21.1.el8_8; kernel (AlmaLinux:8) 4.18.0-477.21.1.el8_8; kernel-abi-stablelists (AlmaLinux:8) 4.18.0-477.21.1.el8_8 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 out-of-bounds memory access flaw was found in the Linux kernel’s XFS file system in how a user restores an XFS image after failure (with a dirty log journal). This flaw allows a local user to crash or potentially escalate their privileges on the system.

HighCVSS 7.8 · v3.1—No exploit Fix available
Published
May 15, 2023
Updated
Jun 17, 2026
EPSS
0.4% · 40th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

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.

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When you'll hear from us

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  • 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
linuxlinux kernel
debiandebian linux
netapph300s firmware
netapph300s
netapph410c firmware
netapph410c
netapph410s firmware
netapph410s
netapph500s firmware
netapph500s
netapph700s firmware
netapph700s

Affected versions

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

  • debian debian linux11.0
  • debian debian linux12.0
  • linux linux kernelbefore 6.4
  • netapp h300s firmwareall versions
  • netapp h410c firmwareall versions
  • netapp h410s firmwareall versions
  • netapp h500s firmwareall versions
  • netapp h700s firmwareall versions

Versions reported by the vendor

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

  • n/a Kernel

    • Linux kernel 6.4-rc1affected

Package-level exposure

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

EcosystemPackageAffected rangeFix
AlmaLinux:8bpftoolbefore 4.18.0-477.21.1.el8_84.18.0-477.21.1.el8_8
AlmaLinux:8kernelbefore 4.18.0-477.21.1.el8_84.18.0-477.21.1.el8_8
AlmaLinux:8kernel-abi-stablelistsbefore 4.18.0-477.21.1.el8_84.18.0-477.21.1.el8_8
AlmaLinux:8kernel-corebefore 4.18.0-477.21.1.el8_84.18.0-477.21.1.el8_8
AlmaLinux:8kernel-cross-headersbefore 4.18.0-477.21.1.el8_84.18.0-477.21.1.el8_8
AlmaLinux:8kernel-debugbefore 4.18.0-477.21.1.el8_84.18.0-477.21.1.el8_8
AlmaLinux:8kernel-debug-corebefore 4.18.0-477.21.1.el8_84.18.0-477.21.1.el8_8
AlmaLinux:8kernel-debug-develbefore 4.18.0-477.21.1.el8_84.18.0-477.21.1.el8_8
AlmaLinux:8kernel-debug-modulesbefore 4.18.0-477.21.1.el8_84.18.0-477.21.1.el8_8
AlmaLinux:8kernel-debug-modules-extrabefore 4.18.0-477.21.1.el8_84.18.0-477.21.1.el8_8
AlmaLinux:8kernel-develbefore 4.18.0-477.21.1.el8_84.18.0-477.21.1.el8_8
AlmaLinux:8kernel-docbefore 4.18.0-477.21.1.el8_84.18.0-477.21.1.el8_8
AlmaLinux:8kernel-modulesbefore 4.18.0-477.21.1.el8_84.18.0-477.21.1.el8_8
AlmaLinux:8kernel-modules-extrabefore 4.18.0-477.21.1.el8_84.18.0-477.21.1.el8_8
AlmaLinux:8kernel-rtbefore 4.18.0-477.21.1.rt7.284.el8_84.18.0-477.21.1.rt7.284.el8_8
AlmaLinux:8kernel-rt-corebefore 4.18.0-477.21.1.rt7.284.el8_84.18.0-477.21.1.rt7.284.el8_8
AlmaLinux:8kernel-rt-debugbefore 4.18.0-477.21.1.rt7.284.el8_84.18.0-477.21.1.rt7.284.el8_8
AlmaLinux:8kernel-rt-debug-corebefore 4.18.0-477.21.1.rt7.284.el8_84.18.0-477.21.1.rt7.284.el8_8
AlmaLinux:8kernel-rt-debug-develbefore 4.18.0-477.21.1.rt7.284.el8_84.18.0-477.21.1.rt7.284.el8_8
AlmaLinux:8kernel-rt-debug-kvmbefore 4.18.0-477.21.1.rt7.284.el8_84.18.0-477.21.1.rt7.284.el8_8
AlmaLinux:8kernel-rt-debug-modulesbefore 4.18.0-477.21.1.rt7.284.el8_84.18.0-477.21.1.rt7.284.el8_8
AlmaLinux:8kernel-rt-debug-modules-extrabefore 4.18.0-477.21.1.rt7.284.el8_84.18.0-477.21.1.rt7.284.el8_8
AlmaLinux:8kernel-rt-develbefore 4.18.0-477.21.1.rt7.284.el8_84.18.0-477.21.1.rt7.284.el8_8
AlmaLinux:8kernel-rt-kvmbefore 4.18.0-477.21.1.rt7.284.el8_84.18.0-477.21.1.rt7.284.el8_8

+96

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now
  • CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
    83Now

Published before and after this one in the same product

  • ← EarlierCVE-2023-32233May 8, 2023 · In the Linux kernel through 6.3.1, a use-after-free in Netfilter nf_tables when processing batch requests can be abused to perform arbitrary
    35Monitor
  • ← EarlierCVE-2023-2156May 9, 2023 · A flaw was found in the networking subsystem of the Linux kernel within the handling of the RPL protocol.
    32Monitor
  • Later →CVE-2023-1859May 17, 2023 · A use-after-free flaw was found in xen_9pfs_front_removet in net/9p/trans_xen.c in Xen transport for 9pfs in the Linux Kernel.
    18Monitor

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
almalinux:kernel-rt5.14.0-284.18.1.rt14.303.el9_2 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-core5.14.0-284.18.1.rt14.303.el9_2 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-debug5.14.0-284.18.1.rt14.303.el9_2 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-debug-core5.14.0-284.18.1.rt14.303.el9_2 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-debug-devel5.14.0-284.18.1.rt14.303.el9_2 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-debug-kvm5.14.0-284.18.1.rt14.303.el9_2 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-debug-modules5.14.0-284.18.1.rt14.303.el9_2 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-debug-modules-core5.14.0-284.18.1.rt14.303.el9_2 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-debug-modules-extra5.14.0-284.18.1.rt14.303.el9_2 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-devel5.14.0-284.18.1.rt14.303.el9_2 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-kvm5.14.0-284.18.1.rt14.303.el9_2 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-rt-modules5.14.0-284.18.1.rt14.303.el9_2 · AlmaLinux:9Package registry (OSV)
debian:linux6.1.37-1 · Debian:12Package registry (OSV)
debian:linux-5.105.10.197-1~deb10u1 · Debian:10Package registry (OSV)
opensuse:dtb-aarch645.3.18-150300.59.121.1 · openSUSE:Leap 15.4Package registry (OSV)
red hat:kernel-rt0:5.14.0-284.18.1.rt14.303.el9_2 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-core0:5.14.0-284.18.1.rt14.303.el9_2 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-debug0:5.14.0-284.18.1.rt14.303.el9_2 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-debug-core0:5.14.0-284.18.1.rt14.303.el9_2 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-debug-debuginfo0:5.14.0-284.18.1.rt14.303.el9_2 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-debug-devel0:5.14.0-284.18.1.rt14.303.el9_2 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-debug-kvm0:5.14.0-284.18.1.rt14.303.el9_2 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-debug-modules0:5.14.0-284.18.1.rt14.303.el9_2 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-debug-modules-core0:5.14.0-284.18.1.rt14.303.el9_2 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-debug-modules-extra0:5.14.0-284.18.1.rt14.303.el9_2 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-debuginfo0:5.14.0-284.18.1.rt14.303.el9_2 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
red hat:kernel-rt-debuginfo-common-x86_640:5.14.0-284.18.1.rt14.303.el9_2 · Red Hat:enterprise_linux:9::nfvPackage registry (OSV)
rocky linux:kernel0:4.18.0-477.21.1.el8_8 · Rocky Linux:8Package registry (OSV)
rocky linux:kernel-rt0:4.18.0-477.21.1.rt7.284.el8_8 · Rocky Linux:8Package registry (OSV)
suse:kernel-64kb5.3.18-150300.59.121.2 · SUSE:Linux Enterprise High Performance Computing 15 SP3-ESPOSPackage registry (OSV)

+14

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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

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

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

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
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

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

nvd-primary

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.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (4 more)

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

All records