CVE-2025-0633
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedHeap-based Buffer Overflow vulnerability in iniparser_dumpsection_ini() in iniparser allows attacker to read out of bound memory
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceHeap-based buffer overflow vulnerability in iniparser library's iniparser_dumpsection_ini() function allows an attacker to read out-of-bounds memory due to insufficient bounds checking when serializing INI section data to a buffer.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- None
- Authentication
- X
- User interaction
- None
- Scope
- X
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify iniparser library versionSearch for the iniparser source files (iniparser.c, iniparser.h, dict.c, dict.h) and check the version string in the source code headers, or run 'grep -r "iniparser" --include="*.c" --include="*.h" | head -20' to locate the library in your projectAffected if the installed version is older than the fixed version (the fixed version should be newer than any version containing the vulnerability in iniparser_dumpsection_ini)
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Locate calls to iniparser_dumpsection_iniSearch your codebase using 'grep -rn "iniparser_dumpsection_ini" .' to find all invocations of the vulnerable functionAffected if any call to iniparser_dumpsection_ini exists in your code
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Determine data source to the vulnerable functionFor each call found, inspect the code path to determine whether the section name argument passed to iniparser_dumpsection_ini originates from untrusted input such as files, user input, or network dataAffected if the section name argument can be controlled by an attacker
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Check for INI file parsing of untrusted sourcesReview code that loads INI files using iniparser_load() or related functions, and trace whether those files come from untrusted sources (uploaded files, configuration from untrusted locations, external input)Affected if your application parses INI files from untrusted sources and then serializes sections back using iniparser_dumpsection_ini
You are affected if your application uses a vulnerable iniparser version AND calls iniparser_dumpsection_ini on section data loaded from untrusted INI sources.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpdate iniparser to the latest version containing the security fix. If a patch is unavailable, review all code paths calling iniparser_dumpsection_ini() and implement proper buffer size validation before use.
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,408.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-0633 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-0633 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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