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

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.

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

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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

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

Exploitinginfo

Class: Release of reference
CWE: CWE-763 / CWE-404
ATT&CK: Unknown

Local: No
Remote: Yes

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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: gitlab.com

Timelineinfo

07/22/2022 🔍
08/31/2022 +40 days 🔍
08/31/2022 +0 days 🔍
10/10/2022 +40 days 🔍

Sourcesinfo

Product: libtiff.org

Advisory: 422
Status: Confirmed

CVE: CVE-2022-2521 (🔍)

Entryinfo

Created: 08/31/2022 22:43
Updated: 10/10/2022 12:23
Changes: 08/31/2022 22:43 (42), 10/10/2022 12:23 (11)
Complete: 🔍

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