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NVD / CVE Program· CNA Linux

CVE-2023-52675: powerpc/imc-pmu: Add a null pointer check in update_events_in_group()

Noroxi assessment

Priority: Monitor (action score 22/100)

  • 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: 0.27% (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: Linux Linux 024352f7928b28f53609660663329d8c0f4ad032, 0a233867a39078ebb0f575e2948593bbff5826b3, 1e80aa25d186a7aa212df5acd8c75f55ac8dae34.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 024352f7928b28f53609660663329d8c0f4ad032, 0a233867a39078ebb0f575e2948593bbff5826b3, 1e80aa25d186a7aa212df5acd8c75f55ac8dae34 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

In the Linux kernel, the following vulnerability has been resolved: powerpc/imc-pmu: Add a null pointer check in update_events_in_group() kasprintf() returns a pointer to dynamically allocated memory which can be NULL upon failure.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 17, 2024
Updated
Oct 15, 2026
EPSS
0.2% · 20th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

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-2023-52675

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
linuxlinux kernel

Affected versions

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

  • linux linux kernel4.14 and later · before 4.19.306
  • linux linux kernel4.20 and later · before 5.4.268
  • linux linux kernel5.5 and later · before 5.10.209
  • linux linux kernel5.11 and later · before 5.15.148
  • linux linux kernel5.16 and later · before 6.1.75
  • linux linux kernel6.2 and later · before 6.6.14
  • linux linux kernel6.7 and later · before 6.7.2

Versions reported by the vendor

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

  • Linux Linux

    • 4.14affected
    • 885dcd709ba9120b9935415b8b0f9d1b94e5826b and later · before 75fc599bcdcb1de093c9ced2e3cccc832f3787f3affected · git
    • 885dcd709ba9120b9935415b8b0f9d1b94e5826b and later · before 1e80aa25d186a7aa212df5acd8c75f55ac8dae34affected · git
    • 885dcd709ba9120b9935415b8b0f9d1b94e5826b and later · before 5a669f3511d273c8c1ab1c1d268fbcdf53fc7a05affected · git
    • 885dcd709ba9120b9935415b8b0f9d1b94e5826b and later · before f105c263009839d80fad6998324a4e1b3511cba0affected · git
    • 885dcd709ba9120b9935415b8b0f9d1b94e5826b and later · before a2da3f9b1a1019c887ee1d164475a8fcdb0a3fecaffected · git
    • 885dcd709ba9120b9935415b8b0f9d1b94e5826b and later · before 024352f7928b28f53609660663329d8c0f4ad032affected · git
    • 885dcd709ba9120b9935415b8b0f9d1b94e5826b and later · before c7d828e12b326ea50fb80c369d7aa87519ed14c6affected · git
    • 885dcd709ba9120b9935415b8b0f9d1b94e5826b and later · before 0a233867a39078ebb0f575e2948593bbff5826b3affected · git
    • before 4.14not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.76-16.1.76-1
Debian:13linuxbefore 6.6.15-16.6.15-1
Rocky Linux:8kernelbefore 0:4.18.0-553.8.1.el8_100:4.18.0-553.8.1.el8_10
SUSE:Linux Micro 6.0kernel-livepatch-MICRO-6-0-RT_Update_5before 1-1.11-1.1
SUSE:Linux Micro 6.0kernel-rtbefore 6.4.0-25.16.4.0-25.1
SUSE:Linux Micro 6.0kernel-source-rtbefore 6.4.0-25.16.4.0-25.1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • 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

Published before and after this one in the same product

  • ← EarlierCVE-2024-35828May 17, 2024 · wifi: libertas: fix some memleaks in lbs_allocate_cmd_buffer()
    22Monitor
  • ← EarlierCVE-2024-35830May 17, 2024 · media: tc358743: register v4l2 async device only after successful setup
    22Monitor
  • Later →CVE-2024-35845May 17, 2024 · wifi: iwlwifi: dbg-tlv: ensure NUL termination
    36Monitor

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
Linux Linux024352f7928b28f53609660663329d8c0f4ad032Vendor (CNA)
Linux Linux0a233867a39078ebb0f575e2948593bbff5826b3Vendor (CNA)
Linux Linux1e80aa25d186a7aa212df5acd8c75f55ac8dae34Vendor (CNA)
Linux Linux5a669f3511d273c8c1ab1c1d268fbcdf53fc7a05Vendor (CNA)
Linux Linux75fc599bcdcb1de093c9ced2e3cccc832f3787f3Vendor (CNA)
Linux Linuxa2da3f9b1a1019c887ee1d164475a8fcdb0a3fecVendor (CNA)
Linux Linuxc7d828e12b326ea50fb80c369d7aa87519ed14c6Vendor (CNA)
Linux Linuxf105c263009839d80fad6998324a4e1b3511cba0Vendor (CNA)
almalinux:bpftool4.18.0-553.8.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel4.18.0-553.8.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-abi-stablelists4.18.0-553.8.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-core4.18.0-553.8.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-cross-headers4.18.0-553.8.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug4.18.0-553.8.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-core4.18.0-553.8.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-devel4.18.0-553.8.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-modules4.18.0-553.8.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-debug-modules-extra4.18.0-553.8.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-devel4.18.0-553.8.1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:kernel-doc4.18.0-553.8.1.el8_10 · AlmaLinux:8Package registry (OSV)
debian:linux6.1.76-1 · Debian:12Package registry (OSV)
rocky linux:kernel0:4.18.0-553.8.1.el8_10 · Rocky Linux:8Package registry (OSV)
suse:kernel-livepatch-MICRO-6-0-RT_Update_51-1.1 · SUSE:Linux Micro 6.0Package registry (OSV)
suse:kernel-rt6.4.0-25.1 · SUSE:Linux Micro 6.0Package registry (OSV)
suse:kernel-source-rt6.4.0-25.1 · SUSE:Linux Micro 6.0Package 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.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

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

No commit or PR link among the references.

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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

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
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-476 · NULL Pointer Dereference

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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 (9 more)

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

All records