LibRaw Image File x3f_utils_patched.cpp get_huffman_diff out-of-bounds

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.8$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in LibRaw. This affects the function get_huffman_diff of the file libraw\src\x3f\x3f_utils_patched.cpp of the component Image File Handler. Executing a manipulation can lead to out-of-bounds. This vulnerability appears as CVE-2020-35531. The attack may be performed from remote. There is no available exploit. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability classified as problematic was found in LibRaw (Image Processing Software) (affected version not known). This vulnerability affects the function get_huffman_diff of the file libraw\src\x3f\x3f_utils_patched.cpp of the component Image File Handler. The manipulation 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 confidentiality. CVE summarizes:

In LibRaw, an out-of-bounds read vulnerability exists within the get_huffman_diff() function (libraw\src\x3f\x3f_utils_patched.cpp) when reading data from an image file.

The weakness was presented 09/02/2022 as 270. The advisory is shared for download at github.com. This vulnerability was named CVE-2020-35531 since 12/17/2020. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 214470 (Debian dla-3113 : libraw-bin - security update), which helps to determine the existence of the flaw in a target environment.

Applying the patch d75af00681a74dcc8b929207eb895611a6eceb68 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at Tenable (214470). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 214470
Nessus Name: Debian dla-3113 : libraw-bin - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: d75af00681a74dcc8b929207eb895611a6eceb68

Timelineinfo

12/17/2020 🔍
09/02/2022 +623 days 🔍
09/02/2022 +0 days 🔍
04/30/2025 +970 days 🔍

Sourcesinfo

Product: github.com

Advisory: 270
Status: Confirmed

CVE: CVE-2020-35531 (🔍)
GCVE (CVE): GCVE-0-2020-35531
GCVE (VulDB): GCVE-100-207748

Entryinfo

Created: 09/02/2022 09:38
Updated: 04/30/2025 00:05
Changes: 09/02/2022 09:38 (43), 10/11/2022 10:38 (11), 01/22/2025 20:27 (16), 04/30/2025 00:05 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you want to use VulDB in your project?

Use the official API to access entries easily!