Memory leak in Util-linux - CVE-2016-5011

Vulnerability identifier: #VU64464

CSH Severity: Low

CVSS v4: 5.1 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2016-5011

CWE-ID: CWE-401

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows an attacker with physical access to perform DoS attack on the target system.

The vulnerability exists due memory leak in the parse_dos_extended function in partitions/dos.c in the libblkid library in util-linux. An attacker with physical USB access can perform denial of service attack via a crafted MSDOS partition table with an extended partition boot record at zero offset.

Util-linux
Isolation Segment
VMware Tanzu Application Service for VMs
Tanzu Greenplum for Kubernetes
Ubuntu
VMware Tanzu Operations Manager
util-linux (Ubuntu package)
libblkid1 (Ubuntu package)

Install updates from vendor's website.

Util-linux - update to 2.29
Tanzu Greenplum for Kubernetes - update to 2.0.0
VMware Tanzu Operations Manager - addressed in versions 2.9.41, 2.10.44
util-linux (Ubuntu package) - update to 2.27.16ubuntu3.10+esm2
libblkid1 (Ubuntu package) - update to 2.27.16ubuntu3.10+esm2

• http://rhn.redhat.com/errata/RHSA-2016-2605.html
• http://www.openwall.com/lists/oss-security/2016/07/11/2
• http://www.securityfocus.com/bid/91683
• http://www.securitytracker.com/id/1036272
• http://www-01.ibm.com/support/docview.wss?uid=isg3T1024543
• http://www-01.ibm.com/support/docview.wss?uid=nas8N1021801
• https://git.kernel.org/pub/scm/utils/util-linux/util-linux.git/commit/?id=7164a1c3

• Ubuntu update for util-linux
• VMware Tanzu products update for util-linux