Security Bulletin
Summary
IBM Event Streams has addressed the following vulnerabilities in the shipped cURL libraries.
Vulnerability Details
CVEID: CVE-2018-16890
DESCRIPTION: cURL libcurl could allow a remote attacker to obtain sensitive information. The function handling incoming NTLM type-2 messages fails to properly validate incoming data and triggers an integer overflow. An attacker could exploit this vulnerability using the overflow to accept a bad length + offset combination that would lead to a buffer read out-of-bounds.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/156649 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
CVEID: CVE-2019-3822
DESCRIPTION: cURL libcurl is vulnerable to a stack-based buffer overflow. The function creating an outgoing NTLM type-3 header generates the request HTTP header contents based on previously received data. By sending an overly large "nt response" data, a remote attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/156651 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
CVEID: CVE-2019-3823
DESCRIPTION: cURL libcurl could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read when handling certain SMTP responses. An attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/156650 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
DESCRIPTION: cURL libcurl could allow a remote attacker to obtain sensitive information. The function handling incoming NTLM type-2 messages fails to properly validate incoming data and triggers an integer overflow. An attacker could exploit this vulnerability using the overflow to accept a bad length + offset combination that would lead to a buffer read out-of-bounds.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/156649 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
CVEID: CVE-2019-3822
DESCRIPTION: cURL libcurl is vulnerable to a stack-based buffer overflow. The function creating an outgoing NTLM type-3 header generates the request HTTP header contents based on previously received data. By sending an overly large "nt response" data, a remote attacker could overflow a buffer and execute arbitrary code on the system.
CVSS Base Score: 7.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/156651 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
CVEID: CVE-2019-3823
DESCRIPTION: cURL libcurl could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read when handling certain SMTP responses. An attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base Score: 5.3
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/156650 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)
Affected Products and Versions
IBM Event Streams 2018.3.0
IBM Event Streams 2018.3.1
Remediation/Fixes
Upgrade to IBM Event Streams 2019.1.1 which is available from Passport Advantage.
Get Notified about Future Security Bulletins
References
Off
Change History
Initial version March 2019
*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.
Disclaimer
Review the IBM security bulletin disclaimer and definitions regarding your responsibilities for assessing potential impact of security vulnerabilities to your environment.
Document Location
Worldwide
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Document Information
Modified date:
29 March 2019
UID
ibm10876554