Adobe Acrobat Reader null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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4.8$0-$5k0.00

Summaryinfo

A vulnerability was found in Adobe Acrobat Reader up to 2017.011.30199/2020.004.30006/2021.005.20060. It has been classified as problematic. This affects an unknown function. The manipulation leads to null pointer dereference. This vulnerability is uniquely identified as CVE-2021-39854. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Adobe Acrobat Reader up to 2017.011.30199/2020.004.30006/2021.005.20060 (Document Reader Software) and classified as problematic. This issue affects an unknown code block. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability.

The weakness was disclosed 09/30/2021 as apsb21-55. It is possible to read the advisory at helpx.adobe.com. The identification of this vulnerability is CVE-2021-39854 since 08/23/2021. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: Partially
Local: Yes
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/23/2021 🔍
09/30/2021 +38 days 🔍
09/30/2021 +0 days 🔍
10/04/2021 +4 days 🔍

Sourcesinfo

Vendor: adobe.com

Advisory: apsb21-55
Status: Confirmed

CVE: CVE-2021-39854 (🔍)
GCVE (CVE): GCVE-0-2021-39854
GCVE (VulDB): GCVE-100-183587

Entryinfo

Created: 09/30/2021 08:24
Updated: 10/04/2021 09:09
Changes: 09/30/2021 08:24 (50), 10/04/2021 09:09 (1)
Complete: 🔍
Cache ID: 216::103

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