Free and open-source vulnerability scanner
Mageni eases for you the vulnerability scanning, assessment, and management process. It is free and open-source.
Install NowAvailable for macOS, Windows, and Linux
Debian Security Advisory DSA 3271-1 (nbd - security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
Tuomas Rsnen discovered that unsafe signal handling in nbd-server, the server for the Network Block Device protocol, could allow remote attackers to cause a deadlock in the server process and thus a denial of service. Tuomas Rsnen also discovered that the modern-style negotiation was carried out in the main server process before forking the actual client handler. This could allow a remote attacker to cause a denial of service (crash) by querying a non-existent export. This issue only affected the oldstable distribution (wheezy).
Affected Software
Affected Software
nbd on Debian Linux
Detection Method
Detection Method
This check tests the installed software version using the apt package manager.
Solution
Solution
For the oldstable distribution (wheezy), these problems have been fixed in version 1:3.2-4~deb7u5. For the stable distribution (jessie), these problems have been fixed in version 1:3.8-4+deb8u1. For the testing distribution (stretch), these problems have been fixed in version 1:3.10-1. For the unstable distribution (sid), these problems have been fixed in version 1:3.10-1. We recommend that you upgrade your nbd packages.