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

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.4$0-$5k0.00

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 denial of service vulnerability. The CWE definition for the vulnerability is CWE-476. As an impact it is known to affect availability. CVE summarizes:

In Libsixel prior to and including v1.10.3, a NULL pointer dereference in the stb_image.h component of libsixel allows attackers to cause a denial of service (DOS) via a crafted PICT file.

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. The attack needs to be done within the local network. A single authentication is necessary for exploitation. There are known technical details, but no exploit is available.

Upgrading to version 1.10.3 eliminates this vulnerability.

Productinfoedit

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CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

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: 🔍

CVSSv2infoedit

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

Exploitinginfoedit

Class: Denial of service
CWE: CWE-476
ATT&CK: Unknown

Local: No
Remote: Partially

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

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

Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: libsixel 1.10.3

Timelineinfoedit

12/20/2021 CVE reserved
01/25/2022 +36 days Advisory disclosed
01/25/2022 +0 days VulDB entry created
01/28/2022 +3 days VulDB last update

Sourcesinfoedit

Advisory: 51
Status: Confirmed

CVE: CVE-2021-45340 (🔒)

Entryinfoedit

Created: 01/25/2022 05:34 PM
Updated: 01/28/2022 12:21 PM
Changes: (1) source_cve_nvd_summary
Complete: 🔍

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