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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.0326.2 Security Advisory for Flash Player | APSA18-01 7 February 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Adobe Flash Player Publisher: Adobe Operating System: Windows Linux variants Mac OS Impact/Access: Execute Arbitrary Code/Commands -- Remote with User Interaction Resolution: Mitigation CVE Names: CVE-2018-4878 Original Bulletin: https://helpx.adobe.com/security/products/flash-player/apsb18-03.html Revision History: February 7 2018: Patches released February 2 2018: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- Security updates available for Flash Player | APSB18-03 +------------------------+----------------------------------+-----------------+ |Bulletin ID |Date Published |Priority | +------------------------+----------------------------------+-----------------+ |APSB18-03 |February 6, 2018 |1 | +------------------------+----------------------------------+-----------------+ Summary Adobe has released security updates for Adobe Flash Player for Windows, Macintosh, Linux and Chrome OS. These updates address critical vulnerabilities that could lead to remote code execution in Adobe Flash Player 28.0.0.137 and earlier versions. Successful exploitation could potentially allow an attacker to take control of the affected system. Adobe is aware of a report that an exploit for CVE-2018-4878 exists in the wild, and is being used in limited, targeted attacks against Windows users. These attacks leverage Office documents with embedded malicious Flash content distributed via email. Affected Product Versions +-----------------------------------+-----------------+-----------------------+ |Product |Version |Platform | +-----------------------------------+-----------------+-----------------------+ |Adobe Flash Player Desktop Runtime |28.0.0.137 and |Windows, Macintosh | | |earlier versions | | +-----------------------------------+-----------------+-----------------------+ |Adobe Flash Player for Google |28.0.0.137 and |Windows, Macintosh, | |Chrome |earlier versions |Linux and Chrome OS | +-----------------------------------+-----------------+-----------------------+ |Adobe Flash Player for Microsoft |28.0.0.137 and |Windows 10 and 8.1 | |Edge and Internet Explorer 11 |earlier versions | | +-----------------------------------+-----------------+-----------------------+ |Adobe Flash Player Desktop Runtime |28.0.0.137 and |Linux | | |earlier versions | | +-----------------------------------+-----------------+-----------------------+ To verify the version of Adobe Flash Player installed on your system, access the About Flash Player page, or right- click on content running in Flash Player and select "About Adobe (or Macromedia) Flash Player" from the menu. If you use multiple browsers, perform the check for each browser you have installed on your system. Solution Adobe categorizes these updates with the following priority ratings and recommends users update their installation to the latest version: +--------------------+----------+-------------+--------+----------------------+ |Product |Version |Platform |Priority|Availability | +--------------------+----------+-------------+--------+----------------------+ | | | | |Flash Player Download | |Adobe Flash Player | |Windows, | |Center | |Desktop Runtime |28.0.0.161|Macintosh |1 | | | | | | |Flash Player | | | | | |Distribution | +--------------------+----------+-------------+--------+----------------------+ | | |Windows, | | | |Adobe Flash Player |28.0.0.161|Macintosh, |1 |Google Chrome Releases| |for Google Chrome | |Linux and | | | | | |Chrome OS | | | +--------------------+----------+-------------+--------+----------------------+ |Adobe Flash Player | | | | | |for Microsoft Edge |28.0.0.161|Windows 10 |1 |Microsoft Security | |and Internet | |and 8.1 | |Advisory | |Explorer 11 | | | | | +--------------------+----------+-------------+--------+----------------------+ |Adobe Flash Player |28.0.0.161|Linux |3 |Flash Player Download | |Desktop Runtime | | | |Center | +--------------------+----------+-------------+--------+----------------------+ Note: Adobe recommends users of the Adobe Flash Player Desktop Runtime for Windows, Macintosh and Linux update to Adobe Flash Player 28.0.0.161 via the update mechanism within the product [1] or by visiting the Adobe Flash Player Download Center. Adobe Flash Player installed with Google Chrome will be automatically updated to the latest Google Chrome version, which will include Adobe Flash Player 28.0.0.161 for Windows, Macintosh, Linux and Chrome OS. Adobe Flash Player installed with Microsoft Edge and Internet Explorer 11 for Windows 10 and 8.1 will be automatically updated to the latest version, which will include Adobe Flash Player 28.0.0.161. Please visit the Flash Player Help page for assistance in installing Flash Player. [1] Users who have selected the option to 'Allow Adobe to install updates' will receive the update automatically. Users who do not have the 'Allow Adobe to install updates' option enabled can install the update via the update mechanism within the product when prompted. Vulnerability details +-------------------------+------------------------+---------+----------------+ |Vulnerability Category |Vulnerability Impact |Severity |CVE Number | +-------------------------+------------------------+---------+----------------+ |Use After Free |Remote Code Execution |Critical |CVE-2018-4878 | +-------------------------+------------------------+---------+----------------+ |Use After Free |Remote Code Execution |Critical |CVE-2018-4877 | +-------------------------+------------------------+---------+----------------+ Acknowledgments Adobe would like to thank the following individuals and organizations for reporting this issue and for working with Adobe to help protect our customers: KrCERT/CC (CVE-2018-4878) bo13oy of Qihoo 360 Vulcan Team working with Trend Micro's Zero Day Initiative (CVE-2018-4877) - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). 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