CVE-2023-33461: iniparser v4.1 is vulnerable to NULL Pointer Dereference in function iniparser_getlongint which misses check N

Routine

MEDIUM 5.5DOWNGRADE

CVE-2023-33461 is a medium-severity flaw (CVSS 5.5) affecting iniparser. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

iniparser v4.1 is vulnerable to NULL Pointer Dereference in function iniparser_getlongint which misses check NULL for function iniparser_getstring's return.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.4% (top 64%)
CISA exploited list	No
Weakness	CWE-476
Published	2023-06-01
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ndevilla

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

Am I affected?

Timeline

2023-06-01 03:15 UTCPublished CVE record published
2026-06-17 06:01 UTCUpdated Record last modified

ndevilla iniparser DOWNGRADE

Affected: 4.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.1

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.1 (Debian / Ubuntu)

apt-cache madison iniparser sudo apt install iniparser=<VERSION_BEFORE_4.1> sudo apt-mark hold iniparser

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

dnf --showduplicates list iniparser sudo dnf downgrade iniparser-<VERSION_BEFORE_4.1> sudo dnf versionlock add iniparser

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-2023-33461?

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

Is CVE-2023-33461 being exploited?

CVE-2023-33461 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-2023-33461 affect?

CVE-2023-33461 affects iniparser. Severity is medium (CVSS 5.5). iniparser v4.1 is vulnerable to NULL Pointer Dereference in function iniparser_getlongint which misses check NULL for function iniparser_getstring's return.

How urgent is CVE-2023-33461?

Priority 33/100. Public exploit reference

References

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