LibRaw up to 0.21.3 load_mfbacks.cpp phase_one_correct w0/w1 improper validation of specified quantity in input

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

Summaryinfo

A vulnerability was found in LibRaw up to 0.21.3. It has been classified as problematic. The affected element is the function phase_one_correct of the file decoders/load_mfbacks.cpp. Performing a manipulation of the argument w0/w1 results in improper validation of specified quantity in input. This vulnerability is identified as CVE-2025-43964. The attack is only possible with local access. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in LibRaw up to 0.21.3. This affects the function phase_one_correct of the file decoders/load_mfbacks.cpp. The manipulation of the argument w0/w1 with an unknown input leads to a improper validation of specified quantity in input vulnerability. CWE is classifying the issue as CWE-1284. The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties. This is going to have an impact on availability. The summary by CVE is:

In LibRaw before 0.21.4, tag 0x412 processing in phase_one_correct in decoders/load_mfbacks.cpp does not enforce minimum w0 and w1 values.

It is possible to read the advisory at libraw.org. This vulnerability is uniquely identified as CVE-2025-43964 since 04/20/2025. The exploitability is told 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 234920 (SUSE SLES12 Security Update : libraw (SUSE-SU-2025:1380-1)), 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 a50dc3f1127d2e37a9b39f57ad9bb2ebb60f18c0 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 (234920) and EUVD (EUVD-2025-11959). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Version

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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

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

Exploitinginfo

Class: Improper validation of specified quantity in input
CWE: CWE-1284 / CWE-703
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: 234920
Nessus Name: SUSE SLES12 Security Update : libraw (SUSE-SU-2025:1380-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: LibRaw 0.21.4
Patch: a50dc3f1127d2e37a9b39f57ad9bb2ebb60f18c0

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-2025-43964 (🔍)
GCVE (CVE): GCVE-0-2025-43964
GCVE (VulDB): GCVE-100-305751
EUVD: 🔍

Entryinfo

Created: 04/21/2025 03:03
Updated: 05/25/2025 01:03
Changes: 04/21/2025 03:03 (68), 04/29/2025 12:42 (2), 05/25/2025 01:03 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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