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 was found in Adobe Acrobat Reader up to 11.0.18/15.006.30244/15.020.20042. It has been rated as critical. Affected by this issue is some unknown functionality of the component XFA Engine. Performing a manipulation results in use after free. This vulnerability is identified as CVE-2017-2950. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, was found in Adobe Acrobat Reader up to 11.0.18/15.006.30244/15.020.20042 (Document Reader Software). This affects an unknown function of the component XFA Engine. 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 summary by CVE is:

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 layout functionality. Successful exploitation could lead to arbitrary code execution.

The bug was discovered 01/10/2017. The weakness was released 01/05/2017 by Sebastian Apelt with Zero Day Initiative as APSB17-01 as confirmed security bulletin (Website). It is possible to read the advisory at helpx.adobe.com. This vulnerability is uniquely identified as CVE-2017-2950 since 12/02/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not 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†). Entries connected to this vulnerability are available at VDB-95140, VDB-95141, VDB-95142 and VDB-95143. Be aware that VulDB is the high quality source for vulnerability data.

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-2017-2950 (🔍)
GCVE (CVE): GCVE-0-2017-2950
GCVE (VulDB): GCVE-100-95151

OVAL: 🔍

SecurityFocus: 95343 - Adobe Acrobat and Reader APSB17-01 Use-After-Free Multiple Remote Code Execution Vulnerabilities
OSVDB: - CVE-2017-2950 - Adobe - Multiple Products - Use-After-Free Issue
SecurityTracker: 1037574

See also: 🔍

Entryinfo

Created: 01/11/2017 09:41
Updated: 10/28/2022 09:47
Changes: 01/11/2017 09:41 (83), 08/26/2020 10:00 (2), 10/28/2022 09:47 (3)
Complete: 🔍
Cache ID: 216::103

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