GNU LibreDWG 0.10 decode.c read_2004_compressed_section 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 described as problematic has been identified in GNU LibreDWG 0.10. This issue affects the function read_2004_compressed_section of the file decode.c. The manipulation results in null pointer dereference. This vulnerability was named CVE-2020-21835. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as problematic, was found in GNU LibreDWG 0.10 (Image Processing Software). Affected is the function read_2004_compressed_section of the file decode.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 presented 05/18/2021. The advisory is available at github.com. This vulnerability is traded as CVE-2020-21835. Technical details are known, but there is no available exploit.

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

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Productinfo

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Vendor

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Version

License

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

08/13/2020 🔍
05/18/2021 +278 days 🔍
05/18/2021 +0 days 🔍
07/05/2026 +1874 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: github.com
Status: Confirmed

CVE: CVE-2020-21835 (🔍)
GCVE (CVE): GCVE-0-2020-21835
GCVE (VulDB): GCVE-100-175278

Entryinfo

Created: 05/18/2021 08:20
Updated: 07/05/2026 11:57
Changes: 05/18/2021 08:20 (38), 05/22/2021 08:04 (2), 07/05/2026 11:57 (33)
Complete: 🔍
Cache ID: 216::103

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