Security Bulletin: Vulnerabilities in curl affect PowerKVM

Summary

PowerKVM is affected by vulnerabilities in curl. IBM has now addressed these vulnerabilities.

Vulnerability Details

CVEID: CVE-2018-1000301 DESCRIPTION: curl is vulnerable to a denial of service, caused by heap-based buffer over-read. By sending a specially crafted RTSP response, a remote attacker could overflow a buffer and possibly obtain sensitive information or cause the application to crash.
CVSS Base Score: 6.5
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/143390&gt; 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:L)

CVEID: CVE-2018-1000122 DESCRIPTION: curl could allow a remote attacker to obtain sensitive information, caused by a buffer over-read in the RTSP+RTP handling code. An attacker could exploit this vulnerability to obtain sensitive information or cause a denial of service.
CVSS Base Score: 6.5
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/140316&gt; 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:L)

CVEID: CVE-2018-1000121 DESCRIPTION: curl is vulnerable to a denial of service, caused by a NULL pointer dereference in the LDAP code. An attacker could exploit this vulnerability using LDAP URLs to crash the server.
CVSS Base Score: 5.3
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/140315&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)

CVEID: CVE-2018-1000120 DESCRIPTION: curl is vulnerable to a heap-based buffer overflow, caused by improper bounds checking when handling FTP URLs. By persuading a victim to open a specially crafted file, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
CVSS Base Score: 6.3
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/140314&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L)

CVEID: CVE-2018-1000007 DESCRIPTION: cURL libcurl could allow a remote attacker to obtain sensitive information, caused by a flaw when passing on custom Authorization: headers. By sending a specially-crafted HTTP redirects request, a remote attacker could exploit this vulnerability to obtain sensitive information.
CVSS Base Score: 7.5
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/138218&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)

Affected Products and Versions

PowerKVM 3.1

Remediation/Fixes

Customers can update PowerKVM systems by using “yum update”.

Fix images are made available via Fix Central. For version 3.1, see https://ibm.biz/BdHggw. This issue is addressed starting with v3.1.0.2 update 16.

Workarounds and Mitigations

none