CVE-2025-0633

Heap Overflow in iniparser.c

5.1 MediumFix available

Heap-based Buffer Overflow vulnerability in iniparser_dumpsection_ini() in iniparser allows attacker to read out of bound memory

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

0.23%Up 0.2 points since Feb 20, 2025

What each source reports

CVE List Score used 5.1

Heap Overflow in iniparser.c

Heap-based Buffer Overflow vulnerability in iniparser_dumpsection_ini() in iniparser allows attacker to read out of bound memory

Record: CVE-2025-0633
CVSS 4.0: 5.1 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Weakness: CWE-122
Updated: 2026-11-02

EUVDEUVD-2025-4745 5.1

Heap-based Buffer Overflow vulnerability in iniparser_dumpsection_ini() in iniparser allows attacker to read out of bound memory

Record: EUVD-2025-4745
CVSS 4.0: 5.1 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-2599-v2c2-3fp3 5.1

Heap-based Buffer Overflow vulnerability in iniparser_dumpsection_ini() in iniparser allows...

Heap-based Buffer Overflow vulnerability in iniparser_dumpsection_ini() in iniparser allows attacker to read out of bound memory

Record: GHSA-2599-v2c2-3fp3
CVSS 4.0: 5.1 MediumCVSS: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
Weakness: CWE-122
Updated: 2026-11-02

NVD 5.1

Heap-based Buffer Overflow vulnerability in iniparser_dumpsection_ini() in iniparser allows attacker to read out of bound memory

Record: CVE-2025-0633
CVSS 4.0: 5.1 MediumCVSS: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
Weakness: CWE-122
Updated: 2026-11-02

OSV 5.1

Heap Overflow in iniparser.c

Heap-based Buffer Overflow vulnerability in iniparser_dumpsection_ini() in iniparser allows attacker to read out of bound memory

Record: CVE-2025-0633
CVSS 4.0: 5.1 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Weakness: CWE-122
Updated: 2026-11-02

OSVDEBIAN-CVE-2025-0633 5.1

Heap-based Buffer Overflow vulnerability in iniparser_dumpsection_ini() in iniparser allows attacker to read out of bound memory

Record: DEBIAN-CVE-2025-0633
CVSS 4.0: 5.1 MediumCVSS: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
Updated: 2026-11-02

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OSVOESA-2025-1277 4.0

iniparser security update

This modules offers parsing of ini files from the C level. See a complete documentation in HTML format, from this directory open the file html/index.html with any HTML-capable browser.

Security Fix(es):

Heap-based Buffer Overflow vulnerability in iniparser_dumpsection_ini() in iniparser allows attacker to read out of bound memory(CVE-2025-0633)

Record: OESA-2025-1277
CVSS 3.1: 4.0 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2025-0633 5.1

Heap-based Buffer Overflow vulnerability in iniparser_dumpsection_ini() in iniparser allows attacker to read out of bound memory

Record: UBUNTU-CVE-2025-0633
CVSS 4.0: 5.1 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
Updated: 2026-11-02

OSVAZL-56943 No score

CVE-2025-0633 affecting package iniparser 4.1-6

Heap-based Buffer Overflow vulnerability in iniparser_dumpsection_ini() in iniparser allows attacker to read out of bound memory

Record: AZL-56943
Updated: 2026-11-02

OSVAZL-57019 No score

CVE-2025-0633 affecting package iniparser for versions less than 4.1-8

Heap-based Buffer Overflow vulnerability in iniparser_dumpsection_ini() in iniparser allows attacker to read out of bound memory

Record: AZL-57019
Updated: 2026-11-05

OSVMGASA-2025-0077 No score

Updated iniparser packages fix security vulnerability

A heap-based buffer overflow vulnerability in iniparser_dumpsection_ini() in iniparser allows an attacker to read out-of-bounds memory. (CVE-2025-0633)

Record: MGASA-2025-0077
Updated: 2026-11-02

OSVopenSUSE-SU-2025:14836-1 No score

libiniparser-devel-4.2.6-1.1 on GA media

These are all security issues fixed in the libiniparser-devel-4.2.6-1.1 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2025:14836-1
Updated: 2026-11-02

OSVSUSE-SU-2025:0821-1 No score

Security update for iniparser

This update for iniparser fixes the following issues:

CVE-2025-0633: string copy into buffer without previous size validation leads to heap buffer overflow in iniparser_dumpsection_ini() of iniparser (bsc#1237377).

Record: SUSE-SU-2025:0821-1
Updated: 2026-11-02

OSVSUSE-SU-2025:0845-1 No score

Security update for iniparser

This update for iniparser fixes the following issues:

CVE-2025-0633: string copy into buffer without previous size validation leads to heap buffer overflow in iniparser_dumpsection_ini() of iniparser (bsc#1237377).

Record: SUSE-SU-2025:0845-1
Updated: 2026-11-02

OSVUSN-7286-1 No score

iniparser vulnerability

It was discovered that iniParser incorrectly handled certain files. An attacker could possibly use this issue to cause iniParser to crash, resulting in a denial of service.

Record: USN-7286-1
Updated: 2026-11-02

Affected products

iniparser

Affected packages

Affected packages
Package	Affected	Fixed
`iniparser` Azure Linux:2	through 4.1-6	None known
`iniparser` Azure Linux:3	before 4.1-8	4.1-8
`iniparser` Debian:12	All versions, plus listed versions 4.1-64.1-74.2-14.2-1~exp14.2.1-1 Show 4 moreShow less 4.2.4-14.2.4-1~exp14.2.5-14.2.6-1	None known
`iniparser` Debian:13	before 4.2.6-1	4.2.6-1
`iniparser` Debian:14	before 4.2.6-1	4.2.6-1
`iniparser` Mageia:9	before 4.1-4.1.mga9	4.1-4.1.mga9
`iniparser` openEuler:22.03-LTS-SP3	before 4.1-6.oe2203sp3	4.1-6.oe2203sp3
`iniparser` openEuler:22.03-LTS-SP4	before 4.1-6.oe2203sp4	4.1-6.oe2203sp4
`iniparser` openEuler:24.03-LTS	before 4.1-6.oe2403sp1	4.1-6.oe2403sp1
`iniparser` openEuler:24.03-LTS-SP1	before 4.1-6.oe2403sp1	4.1-6.oe2403sp1

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Affected packages
Package	Affected	Fixed
`iniparser` openEuler:20.03-LTS-SP4	before 4.1-5.oe2003sp4	4.1-5.oe2003sp4
`iniparser` SUSE:Linux Enterprise Module for Basesystem 15 SP6	before 4.1-150500.4.8.1	4.1-150500.4.8.1
`iniparser` openSUSE:Leap 15.6	before 4.1-150500.4.8.1	4.1-150500.4.8.1
`iniparser` SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5	before 3.1.0.git20140619_c5beb80a-3.6.1	3.1.0.git20140619_c5beb80a-3.6.1
`iniparser` Ubuntu:18.04:LTS	All versions, plus listed versions 4.1-14.1-2	None known
`iniparser` Ubuntu:20.04:LTS	All versions, plus listed versions 4.1-4	None known
`iniparser` Ubuntu:22.04:LTS	before 4.1-4ubuntu4.2, plus listed versions 4.1-4ubuntu34.1-4ubuntu44.1-4ubuntu4.1	4.1-4ubuntu4.2
`iniparser` Ubuntu:24.04:LTS	before 4.1-7ubuntu0.1, plus listed versions 4.1-64.1-74.1-7build1	4.1-7ubuntu0.1
`iniparser` openSUSE:Tumbleweed	before 4.2.6-1.1	4.2.6-1.1

History

History
Recorded	Changed	Sources
Nov 5, 2026	facts	OSV
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-0633 is a medium vulnerability (CVSS 5.1) in Iniparser, published February 19, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.23%, the 13th percentile. Fixed in iniparser 4.1-8.

References

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