libredwg up to 0.10.1.3751 bits.c bit_read_BB null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in libredwg up to 0.10.1.3751. The affected element is the function bit_read_BB of the file bits.c. The manipulation results in null pointer dereference. This vulnerability is cataloged as CVE-2021-39521. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in libredwg up to 0.10.1.3751 (Image Processing Software). Affected is the function bit_read_BB of the file bits.c. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on availability.

The weakness was shared 09/21/2021 as 262. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2021-39521 since 08/23/2021. There are known technical details, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 5.0

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/23/2021 🔍
09/21/2021 +29 days 🔍
09/21/2021 +0 days 🔍
09/29/2021 +8 days 🔍

Sourcesinfo

Product: github.com

Advisory: 262
Status: Confirmed

CVE: CVE-2021-39521 (🔍)
GCVE (CVE): GCVE-0-2021-39521
GCVE (VulDB): GCVE-100-183024

Entryinfo

Created: 09/21/2021 09:34
Updated: 09/29/2021 21:27
Changes: 09/21/2021 09:34 (39), 09/29/2021 21:12 (1), 09/29/2021 21:27 (18)
Complete: 🔍
Cache ID: 216::103

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