libtiff 4.4.0rc1 tif_close.c TIFFClose release of reference

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in libtiff 4.4.0rc1. Affected is the function TIFFClose of the file tif_close.c. The manipulation leads to release of reference. This vulnerability is referenced as CVE-2022-2521. Remote exploitation of the attack is possible. No exploit is available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in libtiff 4.4.0rc1 (Image Processing Software) and classified as problematic. This issue affects the function TIFFClose of the file tif_close.c. The manipulation with an unknown input leads to a release of reference vulnerability. Using CWE to declare the problem leads to CWE-763. The product attempts to return a memory resource to the system, but it calls the wrong release function or calls the appropriate release function incorrectly. Impacted is availability. The summary by CVE is:

It was found in libtiff 4.4.0rc1 that there is an invalid pointer free operation in TIFFClose() at tif_close.c:131 called by tiffcrop.c:2522 that can cause a program crash and denial of service while processing crafted input.

The weakness was published 08/31/2022 as 422. It is possible to read the advisory at gitlab.com. The identification of this vulnerability is CVE-2022-2521 since 07/22/2022. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 240052 (TencentOS Server 4: libtiff (TSSA-2024:0785)), which helps to determine the existence of the flaw in a target environment.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at gitlab.com.

The vulnerability is also documented in the databases at Tenable (240052) and EUVD (EUVD-2022-34778). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
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: 🔍

Exploitinginfo

Class: Release of reference
CWE: CWE-763 / 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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Nessus ID: 240052
Nessus Name: TencentOS Server 4: libtiff (TSSA-2024:0785)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: gitlab.com

Timelineinfo

07/22/2022 🔍
08/31/2022 +40 days 🔍
08/31/2022 +0 days 🔍
05/26/2026 +1364 days 🔍

Sourcesinfo

Product: libtiff.org

Advisory: 422
Status: Confirmed

CVE: CVE-2022-2521 (🔍)
GCVE (CVE): GCVE-0-2022-2521
GCVE (VulDB): GCVE-100-207635
EUVD: 🔍

Entryinfo

Created: 08/31/2022 22:43
Updated: 05/26/2026 02:21
Changes: 08/31/2022 22:43 (42), 10/10/2022 12:23 (11), 06/17/2025 11:24 (16), 05/26/2026 02:21 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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