CVE-2016-8618

Publication date 2 November 2016

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

The libcurl API function called `curl_maprintf()` before version 7.51.0 can be tricked into doing a double-free due to an unsafe `size_t` multiplication, on systems using 32 bit `size_t` variables.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
curl	17.04 zesty	Fixed 7.50.1-1ubuntu2
	16.10 yakkety	Fixed 7.50.1-1ubuntu1.1
	16.04 LTS xenial	Fixed 7.47.0-1ubuntu2.2
	14.04 LTS trusty	Fixed 7.35.0-1ubuntu2.10
	12.04 LTS precise	Fixed 7.22.0-3ubuntu4.17

How can I get the fixes?
What do statuses mean?

Severity score breakdown

Parameter	Value
Base score	9.8 · Critical
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

MITRE
NVD
Launchpad
Debian

Related Ubuntu Security Notices (USN)

USN-3123-1
curl vulnerabilities
3 November 2016

Other references

https://curl.haxx.se/docs/adv_20161102D.html
https://www.cve.org/CVERecord?id=CVE-2016-8618