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Vulnerabilities

Vulnerability · CVE-2023-53423

In the Linux kernel, the following vulnerability has been resolved: objtool: Fix memory leak in create_static_call_sections() strdup() allocates memory for key_name.

Published Sep 18, 2025 · catalog updated May 11, 2026 · Linux Linux

Check if you run it

No confirmed exploitation is on record for CVE-2023-53423. EPSS is 0.15%. Act only if a listed version of Linux Linux is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Medium5.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.15%
Remediation
Version ranges on file
Affected products
vendor Linux Linux 1e7e47883830aae5e8246a22ca2fc6883c61acdf <a1368eaea058e451d20ea99ca27e72d9df0d16dd

In the Linux kernel, the following vulnerability has been resolved: objtool: Fix memory leak in create_static_call_sections() strdup() allocates memory for key_name. We need to release the memory in the following error paths. Add free() to avoid memory leak.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Linux Linux 1e7e47883830aae5e8246a22ca2fc6883c61acdf <a1368eaea058e451d20ea99ca27e72d9df0d16dd1e7e47883830aae5e8246a22ca2fc6883c61acdf <a1368eaea058e451d20ea99ca27e72d9df0d16dd

How to fix CVE-2023-53423

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2023-53423. EPSS is 0.15%. Act only if a listed version of Linux Linux is installed.

Which versions are affected?

Compare what you have installed with Linux Linux 1e7e47883830aae5e8246a22ca2fc6883c61acdf <a1368eaea058e451d20ea99ca27e72d9df0d16dd 1e7e47883830aae5e8246a22ca2fc6883c61acdf <a1368eaea058e451d20ea99ca27e72d9df0d16dd. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.15%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Sep 18, 2025 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: objtool: Fix memory leak in create_static_call_sections() strdup() allocates memory for key_name. We need to release the memory in the following error paths. Add free() to avoid memory leak.

  2. May 11, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: objtool: Fix memory leak in create_static_call_sections() strdup() allocates memory for key_name. We need to release the memory in the following error paths. Add free() to avoid memory leak.

Sources

  • CVE.orgVulnerability recordCVE-2023-53423

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2023-53423

    30-day exploitation probability 0.15%

    first.org
  • EUVDVulnerability recordEUVD-2025-29896

    In the Linux kernel, the following vulnerability has been resolved: objtool: Fix memory leak in create_static_call_sections() strdup() allocates memory for key_name. We need to release the memory in the following error paths. Add free() to avoid memory leak.

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 23, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.