LibRaw up to 0.21.3 0x041f Tag Processing load_mfbacks.cpp phase_one_correct split_col/split_row out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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2.6$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in LibRaw up to 0.21.3. Affected is the function phase_one_correct of the file decoders/load_mfbacks.cpp of the component 0x041f Tag Processing Handler. This manipulation of the argument split_col/split_row causes out-of-bounds. This vulnerability is registered as CVE-2025-43963. The attack needs to be launched locally. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in LibRaw up to 0.21.3. It has been declared as problematic. Affected by this vulnerability is the function phase_one_correct of the file decoders/load_mfbacks.cpp of the component 0x041f Tag Processing Handler. The manipulation of the argument split_col/split_row with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability. The summary by CVE is:

In LibRaw before 0.21.4, phase_one_correct in decoders/load_mfbacks.cpp allows out-of-buffer access because split_col and split_row values are not checked in 0x041f tag processing.

It is possible to read the advisory at libraw.org. This vulnerability is known as CVE-2025-43963 since 04/20/2025. The exploitation appears to be difficult. Attacking locally is a requirement. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 234954 (Debian dla-4142 : libraw-bin - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.21.4 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch be26e7639ecf8beb55f124ce780e99842de2e964 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (234954) and EUVD (EUVD-2025-11960). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.7
VulDB Meta Temp Score: 2.6

VulDB Base Score: 2.5
VulDB Temp Score: 2.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 2.9
CNA Vector (MITRE): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 234954
Nessus Name: Debian dla-4142 : libraw-bin - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: LibRaw 0.21.4
Patch: be26e7639ecf8beb55f124ce780e99842de2e964

Timelineinfo

04/20/2025 🔍
04/21/2025 +1 days 🔍
04/21/2025 +0 days 🔍
05/25/2025 +33 days 🔍

Sourcesinfo

Product: github.com

Advisory: libraw.org
Status: Confirmed

CVE: CVE-2025-43963 (🔍)
GCVE (CVE): GCVE-0-2025-43963
GCVE (VulDB): GCVE-100-305755
EUVD: 🔍

Entryinfo

Created: 04/21/2025 03:05
Updated: 05/25/2025 01:03
Changes: 04/21/2025 03:05 (70), 04/30/2025 10:06 (2), 05/25/2025 01:03 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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