Security Bulletin: A vulnerability in PHP affects PowerKVM

2018-06-1801:42:20

www.ibm.com

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:N/A:N

JSON

Summary

PowerKVM is affected by a vulnerability in PHP. IBM has now addressed this vulnerability.

Vulnerability Details

CVEID: CVE-2017-7890**
DESCRIPTION:** libgd could allow a remote attacker to obtain sensitive information, caused by the lack of initialization for colorMap arrays in the GIF decoding function gdImageCreateFromGifCtx in gd_gif_in.c. By using a specially-crafted GIF image, a local attacker could exploit this vulnerability to obtain sensitive information from the top of the stack.
CVSS Base Score: 5.5
CVSS Temporal Score: See https://exchange.xforce.ibmcloud.com/vulnerabilities/129822 for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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 13.