CVE-2015-4520

Publication date 22 September 2015

Last updated 24 July 2024

Ubuntu priority

Description

Mozilla Firefox before 41.0 and Firefox ESR 38.x before 38.3 allow remote attackers to bypass CORS preflight protection mechanisms by leveraging (1) duplicate cache-key generation or (2) retrieval of a value from an incorrect HTTP Access-Control-* response header.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
firefox	15.04 vivid	Fixed in 41.0+build3-0ubuntu0.15.04.1
	14.04 LTS trusty	Fixed in 41.0+build3-0ubuntu0.14.04.1
	12.04 LTS precise	Fixed in 41.0+build3-0ubuntu0.12.04.1
thunderbird	15.04 vivid	Fixed in 1:38.3.0+build1-0ubuntu0.15.04.1
	14.04 LTS trusty	Fixed in 1:38.3.0+build1-0ubuntu0.14.04.1
	12.04 LTS precise	Fixed in 1:38.3.0+build1-0ubuntu0.12.04.1

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

References

MITRE
NVD
Launchpad
Debian

Related Ubuntu Security Notices (USN)

USN-2754-1
Thunderbird vulnerabilities
5 October 2015

USN-2743-1
Firefox vulnerabilities
22 September 2015

Other references

https://www.mozilla.org/en-US/security/advisories/mfsa2015-111/
https://www.cve.org/CVERecord?id=CVE-2015-4520