Adobe Acrobat Reader up to 11.0.18/15.006.30244/15.020.20042 XFA Engine use after free

CVSS Meta Temp Score
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Adobe Acrobat Reader up to 11.0.18/15.006.30244/15.020.20042. This affects an unknown part of the component XFA Engine. Executing a manipulation can lead to use after free. This vulnerability is tracked as CVE-2017-2951. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Adobe Acrobat Reader up to 11.0.18/15.006.30244/15.020.20042 (Document Reader Software) and classified as critical. This vulnerability affects an unknown functionality of the component XFA Engine. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Adobe Acrobat Reader versions 15.020.20042 and earlier, 15.006.30244 and earlier, 11.0.18 and earlier have an exploitable use after free vulnerability in the XFA engine, related to sub-form functionality. Successful exploitation could lead to arbitrary code execution.

The bug was discovered 01/10/2017. The weakness was disclosed 01/05/2017 by Sebastian Apelt with Zero Day Initiative as APSB17-01 as confirmed security bulletin (Website). The advisory is shared for download at helpx.adobe.com. This vulnerability was named CVE-2017-2951 since 12/02/2016. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 96455 (Adobe Reader < 11.0.19 / 15.006.30279 / 15.023.20053 Multiple Vulnerabilities (APSB17-01) (macOS)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370277 (Adobe Reader and Acrobat Multiple Vulnerabilities (APSB17-01)).

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (96455) and SecurityFocus (BID 95343†). The entries VDB-95140, VDB-95141, VDB-95142 and VDB-95143 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.9

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

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
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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Nessus ID: 96455
Nessus Name: Adobe Reader < 11.0.19 / 15.006.30279 / 15.023.20053 Multiple Vulnerabilities (APSB17-01) (macOS)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 103337
OpenVAS Name: Adobe Acrobat Security Updates(apsb17-01)-Windows
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

12/02/2016 🔍
01/05/2017 +34 days 🔍
01/05/2017 +0 days 🔍
01/10/2017 +5 days 🔍
01/10/2017 +0 days 🔍
01/10/2017 +0 days 🔍
01/11/2017 +1 days 🔍
01/12/2017 +1 days 🔍
10/28/2022 +2115 days 🔍

Sourcesinfo

Vendor: adobe.com

Advisory: APSB17-01
Researcher: Sebastian Apelt
Organization: Zero Day Initiative
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-2951 (🔍)
GCVE (CVE): GCVE-0-2017-2951
GCVE (VulDB): GCVE-100-95152

OVAL: 🔍

SecurityFocus: 95343 - Adobe Acrobat and Reader APSB17-01 Use-After-Free Multiple Remote Code Execution Vulnerabilities
OSVDB: - CVE-2017-2951 - Adobe - Multiple Products - Use-After-Free Issue
SecurityTracker: 1037574

See also: 🔍

Entryinfo

Created: 01/11/2017 09:41
Updated: 10/28/2022 09:49
Changes: 01/11/2017 09:41 (83), 08/26/2020 09:56 (2), 10/28/2022 09:49 (3)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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