CVE-2023-23003

kernel: missing check for return value of hashmap__new() in the function expr__ctx_new

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Published Mar 1, 2023 CVSS 3.1 · 4 Medium EPSS < 1% KEV · Not listed

Description

In the Linux kernel before 5.16, tools/perf/util/expr.c lacks a check for the hashmap__new return value.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2023-27103	In the Linux kernel before 5.16, tools/perf/util/expr.c lacks a check for the hashmap__new return value.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required High

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.267% probability within 30 days)

Exploitation none

Automatable no

Technical Impact partial

References

Link	Providers
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16
https://github.com/torvalds/linux/commit/0a515a06c5ebfa46fee3ac519e418f801e718da4
https://nvd.nist.gov/vuln/detail/CVE-2023-23003
https://security.netapp.com/advisory/ntap-20230331-0003/
https://www.cve.org/CVERecord?id=CVE-2023-23003

History

Mar 20, 2025 3:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Subscriptions

Linux Linux Kernel

Weaknesses

CWE-252

Sources

CVE record Updated: Mar 20, 2025, 2:24 PM

Status: PUBLISHED
Assigner: mitre
Published: Mar 1, 2023, 12:00 AM
Updated: Mar 20, 2025, 2:24 PM
Reserved: Jan 11, 2023, 12:00 AM

View source JSON

Vulnrichment Updated: Aug 2, 2024, 10:20 AM

Updated: Aug 2, 2024, 10:20 AM

NVD Updated: Jun 17, 2026, 5:36 AM

Status: Modified
Published: Mar 1, 2023, 8:15 PM
Modified: Jun 17, 2026, 5:36 AM

View source JSON

Red Hat Updated: Dec 18, 2021, 12:00 AM

Severity: Moderate
Public date: Dec 18, 2021, 12:00 AM

View source Bugzilla JSON

OpenCVE enrichment No data

No data.

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