CVE-2016-5011

Publication date 11 April 2017

Last updated 26 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The parse_dos_extended function in partitions/dos.c in the libblkid library in util-linux allows physically proximate attackers to cause a denial of service (memory consumption) via a crafted MSDOS partition table with an extended partition boot record at zero offset.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
util-linux	25.10 questing	Not affected
	25.04 plucky	Not affected
	24.10 oracular	Not affected
	24.04 LTS noble	Not affected
	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.10 kinetic	Not affected
	22.04 LTS jammy	Not affected
	21.10 impish	Not affected
	21.04 hirsute	Not affected
	20.10 groovy	Not affected
	20.04 LTS focal	Not affected
	19.10 eoan	Not affected
	19.04 disco	Not affected
	18.10 cosmic	Not affected
	18.04 LTS bionic	Not affected
	17.10 artful	Ignored end of life
	17.04 zesty	Ignored end of life
	16.10 yakkety	Ignored end of life
	16.04 LTS xenial	Fixed 2.27.1-6ubuntu3.10+esm2
	15.10 wily	Ignored end of life
	14.04 LTS trusty	Vulnerable
	12.04 LTS precise	Ignored end of life

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Notes

eslerm

upstream patch does not apply to 2.20.1 (trusty)

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
util-linux	Upstream: ?id=716 Upstream: ?id=50d

Severity score breakdown

Parameter	Value
Base score	4.6 · Medium
Attack vector	Physical
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H