libsixel 1.8.6 encoder.c sixel_encoder_output_without_macro double free

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

Summaryinfo

A vulnerability was found in libsixel 1.8.6. It has been rated as critical. This impacts the function sixel_encoder_output_without_macro of the file encoder.c. This manipulation causes double free. This vulnerability appears as CVE-2021-46700. There is no available exploit.

Detailsinfo

A vulnerability was found in libsixel 1.8.6. It has been declared as critical. Affected by this vulnerability is the function sixel_encoder_output_without_macro of the file encoder.c. The manipulation with an unknown input leads to a double free vulnerability. The CWE definition for the vulnerability is CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 02/20/2022 as 158. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2021-46700 since 02/19/2022. Technical details of the vulnerability 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.

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

Productinfo

Name

Version

License

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: Double free
CWE: CWE-415 / 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

02/19/2022 🔍
02/20/2022 +1 days 🔍
02/20/2022 +0 days 🔍
02/25/2022 +5 days 🔍

Sourcesinfo

Advisory: 158
Status: Confirmed

CVE: CVE-2021-46700 (🔍)
GCVE (CVE): GCVE-0-2021-46700
GCVE (VulDB): GCVE-100-193543

Entryinfo

Created: 02/20/2022 02:50
Updated: 02/25/2022 07:54
Changes: 02/20/2022 02:50 (38), 02/25/2022 07:54 (1)
Complete: 🔍
Cache ID: 216::103

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

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