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Security Bulletin: Kernel Buffer Overflow in IBM Security Trusteer Rapport for MacOS (CVE-2018-1985)

Security Bulletin


IBM Security Trusteer Rapport for MacOS is bundled with a driver which has a buffer overflow vulnerability. The affected driver was removed from the package.

Vulnerability Details

  • CVEID: CVE-2018-1985
    DESCRIPTION: IBM Trusteer Rapport/Apex contains an unused legacy driver which could allow a user with administrator privileges to cause a buffer overflow that could result in a kernel panic or arbitrary code execution.
    CVSS Base Score: 4.4
    CVSS Temporal Score: See for the current score
    CVSS Environmental Score*: Undefined
    CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

IBM Security Rapport for MacOS with version below 3.6.1908.26.


IBM Security Rapport for MacOS version 3.6.1908.26 and higher does not include the vulnerable driver. IBM pushed the new version of Rapport to end users, which addresses this vulnerability and includes other updates, by January 6, 2019. As with any updates to the Rapport agent, we recommend that customers continue to reinforce messaging that their end users reboot their machines to incorporate the upgrade.

Workarounds and Mitigations


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The vulnerability was reported to IBM by Neil Kettle of Trustwave.

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.


Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.

Internal Use Only

Advisory 13059 Records 119764

Document Location


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Document Information

Modified date:
27 February 2019