Nitro Pro PDF prior 13.31.0.605/13.33.2.645 PDF File use after free

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.0$0-$5k0.00

Summaryinfo

A vulnerability described as critical has been identified in Nitro Pro PDF. Affected by this issue is some unknown functionality of the component PDF File Handler. The manipulation results in use after free. This vulnerability is reported as CVE-2021-21798. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Nitro Pro PDF. Affected is an unknown code block of the component PDF File Handler. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 09/13/2021 as TALOS-2021-1267. The advisory is available at blog.talosintelligence.com. This vulnerability is traded as CVE-2021-21798. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

Upgrading to version 13.31.0.605 or 13.33.2.645 eliminates this vulnerability.

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Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Pro PDF 13.31.0.605/13.33.2.645

Timelineinfo

01/04/2021 🔍
09/13/2021 +251 days 🔍
09/13/2021 +0 days 🔍
09/16/2021 +3 days 🔍

Sourcesinfo

Advisory: TALOS-2021-1267
Status: Confirmed

CVE: CVE-2021-21798 (🔍)
GCVE (CVE): GCVE-0-2021-21798
GCVE (VulDB): GCVE-100-182502

Entryinfo

Created: 09/13/2021 17:25
Updated: 09/16/2021 10:53
Changes: 09/13/2021 17:25 (38), 09/16/2021 10:53 (1)
Complete: 🔍
Cache ID: 216::103

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