CVE-2017-5456

Publication date 20 April 2017

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

A mechanism to bypass file system access protections in the sandbox using the file system request constructor through an IPC message. This allows for read and write access to the local file system. This vulnerability affects Firefox ESR < 52.1 and Firefox < 53.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
firefox	17.04 zesty	Fixed 53.0+build6-0ubuntu0.17.04.1
	16.10 yakkety	Fixed 53.0+build6-0ubuntu0.16.10.1
	16.04 LTS xenial	Fixed 53.0+build6-0ubuntu0.16.04.1
	14.04 LTS trusty	Fixed 53.0+build6-0ubuntu0.14.04.1
	12.04 LTS precise	Ignored
thunderbird	17.04 zesty	Not affected
	16.10 yakkety	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Ignored end of life

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

Related Ubuntu Security Notices (USN)