libsixel up to 1.10.2 PICT File stb_image.h null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in libsixel up to 1.10.2. The impacted element is an unknown function of the file stb_image.h of the component PICT File Handler. Executing a manipulation can lead to null pointer dereference. This vulnerability is tracked as CVE-2021-45340. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in libsixel up to 1.10.2. It has been declared as problematic. This vulnerability affects an unknown part of the file stb_image.h of the component PICT File Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect availability.

The weakness was disclosed 01/25/2022 as 51. The advisory is shared for download at github.com. This vulnerability was named CVE-2021-45340 since 12/20/2021. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 214385 (Fedora 41 : stb (2025-6a64d3b2fc)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.10.3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (214385). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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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Nessus ID: 214385
Nessus Name: Fedora 41 : stb (2025-6a64d3b2fc)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: libsixel 1.10.3

Timelineinfo

12/20/2021 🔍
01/25/2022 +36 days 🔍
01/25/2022 +0 days 🔍
01/19/2025 +1090 days 🔍

Sourcesinfo

Product: github.com

Advisory: 51
Status: Confirmed

CVE: CVE-2021-45340 (🔍)
GCVE (CVE): GCVE-0-2021-45340
GCVE (VulDB): GCVE-100-191572

Entryinfo

Created: 01/25/2022 17:34
Updated: 01/19/2025 13:12
Changes: 01/25/2022 17:34 (40), 01/28/2022 12:21 (1), 01/19/2025 13:12 (16)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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