Security Bulletin: A vulnerability in Perl affects PowerKVM

Summary

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

Vulnerability Details

CVEID: CVE-2018-18311 DESCRIPTION: Perl is vulnerable to a heap-based buffer overflow, caused by an integer overflow in the Perl_my_setenv function. By sending a specially-crafted request, a local attacker could overflow a buffer and execute arbitrary code or cause a denial of service condition.
CVSS Base Score: 8.4
CVSS Temporal Score: See <https://exchange.xforce.ibmcloud.com/vulnerabilities/153586&gt; for the current score
CVSS Environmental Score*: Undefined
CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

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 17.

Workarounds and Mitigations

none