GNU LibreDWG 0.10 bits.c bit_search_sentinel heap-based overflow

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in GNU LibreDWG 0.10. The impacted element is the function bit_search_sentinel of the file bits.c. Performing a manipulation results in heap-based overflow. This vulnerability is identified as CVE-2020-21840. There is not any exploit available.

Detailsinfo

A vulnerability was found in GNU LibreDWG 0.10 (Image Processing Software). It has been classified as critical. This affects the function bit_search_sentinel of the file bits.c. The manipulation with an unknown input leads to a heap-based overflow vulnerability. CWE is classifying the issue as CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 05/18/2021. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2020-21840. Technical details are known, 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.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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 🔍
05/22/2021 +4 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: github.com
Status: Confirmed

CVE: CVE-2020-21840 (🔍)
GCVE (CVE): GCVE-0-2020-21840
GCVE (VulDB): GCVE-100-175281

Entryinfo

Created: 05/18/2021 08:21
Updated: 05/22/2021 08:15
Changes: 05/18/2021 08:21 (38), 05/22/2021 08:15 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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