CVE-2016-2037

Publication date 22 January 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The cpio_safer_name_suffix function in util.c in cpio 2.11 allows remote attackers to cause a denial of service (out-of-bounds write) via a crafted cpio file.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
cpio	17.04 zesty	Fixed 2.11+dfsg-5ubuntu1
	16.10 yakkety	Fixed 2.11+dfsg-5ubuntu1
	16.04 LTS xenial	Fixed 2.11+dfsg-5ubuntu1
	15.10 wily	Fixed 2.11+dfsg-4.1ubuntu1.1
	15.04 vivid	Ignored end of life
	14.04 LTS trusty	Fixed 2.11+dfsg-1ubuntu1.2
	12.04 LTS precise	Fixed 2.11-7ubuntu3.2

Notes

tyhicks

test case attached to oss-security email

Patch details

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

Package	Patch details
cpio	Other: http://lists.gnu.org/archive/html/bug-cpio/2016-01/msg00005.html

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

USN-2906-1
GNU cpio vulnerabilities
22 February 2016