CVE-2023-24180: Libelfin v0.3 was discovered to contain an integer overflow in the load function at elf/mmap_loader.cc

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MEDIUM 6.5DOWNGRADE

CVE-2023-24180 is a medium-severity flaw (CVSS 6.5) affecting libelfin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Libelfin v0.3 was discovered to contain an integer overflow in the load function at elf/mmap_loader.cc. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted elf file.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.6% (top 52%)
CISA exploited list	No
Weakness	CWE-190
Published	2023-03-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: libelfin project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-03-14 14:15 UTCPublished CVE record published
2026-06-17 05:38 UTCUpdated Record last modified

libelfin project libelfin DOWNGRADE

Affected: 0.3

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.3

1. Check installed version

apt-cache policy libelfin || rpm -q libelfin || libelfin --version

2. No fixed release: DOWNGRADE to a release before 0.3 (Debian / Ubuntu)

apt-cache madison libelfin sudo apt install libelfin=<VERSION_BEFORE_0.3> sudo apt-mark hold libelfin

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list libelfin sudo dnf downgrade libelfin-<VERSION_BEFORE_0.3> sudo dnf versionlock add libelfin

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-24180?

libelfin: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-24180 being exploited?

CVE-2023-24180 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-24180 affect?

CVE-2023-24180 affects libelfin. Severity is medium (CVSS 6.5). Libelfin v0.3 was discovered to contain an integer overflow in the load function at elf/mmap_loader.cc. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted elf file.

How urgent is CVE-2023-24180?

Priority 40/100. Public exploit reference

References

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