Multiple Vulnerabilities in Adobe Acrobat and Reader Could Allow for Arbitrary Code Execution (APSB18-09)

ITS Advisory Number: 
2018-057
Date(s) Issued: 
Tuesday, May 15, 2018
Subject: 
Multiple Vulnerabilities in Adobe Acrobat and Reader Could Allow for Arbitrary Code Execution (APSB18-09)
Overview: 

Multiple vulnerabilities have been discovered in Adobe Acrobat and Reader, the most severe of which could allow for arbitrary code execution. Adobe Acrobat and Reader allow a user to view, create, manipulate, print and manage files in Portable Document Format (PDF). Successful exploitation of the most severe of these vulnerabilities could result in an attacker executing arbitrary code in the context of the affected application. Depending on the privileges associated with this application, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. If this application has been configured to have fewer user rights on the system, exploitation of the most severe of these vulnerabilities could have less impact than if it was configured with administrative rights.

Systems Affected: 
  • Adobe Acrobat DC (Consumer Track) for Windows and Macintosh versions 2018.011.20038 and earlier
  • Adobe Acrobat Reader DC (Consumer Track) for Windows and Macintosh versions 2018.011.20038 and earlier
  • Adobe Acrobat 2017 (Classic 2017 Track) for Windows and Macintosh versions 2017.011.30079 and earlier
  • Adobe Acrobat Reader 2017 (Classic 2017 Track) for Windows and Macintosh versions 2017.011.30079 and earlier
  • Adobe Acrobat DC (Classic 2015 Track) for Windows and Macintosh versions 2015.006.30417 and earlier
  • Adobe Acrobat Reader DC (Classic 2015 Track) for Windows and Macintosh versions 2015.006.30417 and earlier
RISK
GOVERNMENT
Large and medium government entities: 
High
Small government entities: 
Medium
BUSINESS
Large and medium business entities: 
High
Small business entities: 
Medium
Home Users: 
Low
Description: 

Multiple vulnerabilities have been discovered in Adobe Acrobat and Reader, the most severe of which could allow for arbitrary code execution. The vulnerabilities are as follows:

  • One double free vulnerability that could allow for arbitrary code execution (CVE-2018-4990)
  • Seven heap overflow vulnerabilities that could allow for arbitrary code execution (CVE-2018-4947, CVE-2018-4948, CVE-2018-4966, CVE-2018-4968, CVE-2018-4978, CVE-2018-4982, CVE-2018-4984)
  • Thirteen use-after-free vulnerabilities that could allow for arbitrary code execution (CVE-2018-4946, CVE-2018-4952, CVE-2018-4954, CVE-2018-4958, CVE-2018-4959, CVE-2018-4961, CVE-2018-4971, CVE-2018-4974, CVE-2018-4977, CVE-2018-4980, CVE-2018-4983, CVE-2018-4988, CVE-2018-4989)
  • One out-of-bounds write vulnerability that could allow for arbitrary code execution (CVE-2018-4950)
  • One security bypass vulnerability that could allow for information disclosure (CVE-2018-4979)
  • Nineteen out-of-bounds read vulnerabilities that could allow for information disclosure (CVE-2018-4949, CVE-2018-4951, CVE-2018-4955, CVE-2018-4956, CVE-2018-4957, CVE-2018-4960, CVE-2018-4962, CVE-2018-4963, CVE-2018-4964, CVE-2018-4967, CVE-2018-4969, CVE-2018-4970, CVE-2018-4972, CVE-2018-4973, CVE-2018-4975, CVE-2018-4976, CVE-2018-4981, CVE-2018-4986, CVE-2018-4985)
  • One type confusion that could allow for arbitrary code execution (CVE-2018-4953)
  • One untrusted pointer dereference that could allow for arbitrary code execution (CVE-2018-4987)
  • One memory corruption vulnerability that could allow for information disclosure (CVE-2018-4965)
  • One NTLM SSO hash theft vulnerability that could allow for information disclosure (CVE-2018-4993)
  • One HTTP POST new line injection via XFA submission that could allow for security bypass (CVE-2018-4994)

Successful exploitation of the most severe of these vulnerabilities could result in an attacker executing arbitrary code in the context of the affected application. Depending on the privileges associated with this application, an attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. If this application has been configured to have fewer user rights on the system, exploitation of the most severe of these vulnerabilities could have less impact than if it was configured with administrative rights. 

Actions: 
  • After appropriate testing, immediately install the updates provided by Adobe.
  • Run all software as a non-privileged user (one without administrative privileges) to diminish the effects of a successful attack.
  • Remind users not to visit websites or follow links provided by unknown or untrusted sources.
  • Inform and educate users regarding the threats posed by hypertext links contained in emails or attachments especially from un-trusted sources.
  • Apply the Principle of Least Privilege to all systems and services.
References: 

Adobe:

https://helpx.adobe.com/security/products/acrobat/apsb18-09.html

CVE:

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4946

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4947

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4948

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4949

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4950

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4951

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4952

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4953

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4954

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4955

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4956

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4957

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4958

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4959

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4960

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4961

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4962

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4963

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4964

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4965

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4966

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4967

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4968

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4969

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4970

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4971

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4972

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4973

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4974

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4975

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4976

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4977

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4978

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4979

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4980

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4981

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4982

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4983

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4984

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4985  

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4986

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4987

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4988 

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4989

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4990

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4993

https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-4994