Adobe Acrobat Reader up to 17.011.30204/20.004.30017/21.007.20099 Format Event Action use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.8$5k-$25k0.00

A vulnerability was found in Adobe Acrobat Reader up to 17.011.30204/20.004.30017/21.007.20099 (Document Reader Software). It has been declared as problematic. This vulnerability affects some unknown processing of the component Format Event Action Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-416. As an impact it is known to affect availability. CVE summarizes:

Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a use-after-free vulnerability in the processing of Format event actions that could result in application denial of service. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

The weakness was released 01/15/2022 as apsb22-01. The advisory is available at helpx.adobe.com. This vulnerability was named CVE-2021-44713 since 12/07/2021. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 01/19/2022).

Upgrading eliminates this vulnerability.

Productinfoedit

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CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.5
CNA Vector (Adobe Systems Incorporated): 🔒

CVSSv2infoedit

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

Exploitinginfoedit

Class: Memory corruption
CWE: CWE-416
ATT&CK: Unknown

Local: No
Remote: Yes

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: helpx.adobe.com

Timelineinfoedit

12/07/2021 CVE assigned
01/15/2022 +39 days Advisory disclosed
01/15/2022 +0 days VulDB entry created
01/19/2022 +4 days VulDB last update

Sourcesinfoedit

Vendor: https://www.adobe.com/

Advisory: apsb22-01
Status: Confirmed

CVE: CVE-2021-44713 (🔒)

Entryinfoedit

Created: 01/15/2022 08:01 AM
Updated: 01/19/2022 12:50 PM
Changes: (1) source_cve_nvd_summary
Complete: 🔍

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