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Debian Security Advisory DSA 3871-1 (zookeeper - security update)

Information

Severity

Severity

Medium

Family

Family

Debian Local Security Checks

CVSSv2 Base

CVSSv2 Base

5.0

CVSSv2 Vector

CVSSv2 Vector

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

Solution Type

Solution Type

Vendor Patch

Created

Created

5 years ago

Modified

Modified

1 year ago

Summary

It was discovered that Zookeeper, a service for maintaining configuration information, didn't restrict access to the computationally expensive wchp/wchc commands which could result in denial of service by elevated CPU consumption. This update disables those two commands by default. The new configuration option 4lw.commands.whitelist can be used to whitelist commands selectively (and the full set of commands can be restored with '*')

Affected Software

Affected Software

zookeeper on Debian Linux

Detection Method

Detection Method

This check tests the installed software version using the apt package manager.

Solution

Solution

For the stable distribution (jessie), this problem has been fixed in version 3.4.5+dfsg-2+deb8u2. For the unstable distribution (sid), this problem will be fixed soon. We recommend that you upgrade your zookeeper packages.

Common Vulnerabilities and Exposures (CVE)