CVE-2015-4516
Mozilla Firefox before 41.0 allows remote attackers to bypass certain ECMAScript 5 (aka ES5) API protection mechanisms and modify immutable properties, and consequently execute arbitrary JavaScript code with chrome privileges, via a crafted web page…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.46%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Mozilla Firefox before 41.0 allows remote attackers to bypass certain ECMAScript 5 (aka ES5) API protection mechanisms and modify immutable properties, and consequently execute arbitrary JavaScript code with chrome privileges, via a crafted web page that does not use ES5 APIs.
- CVSS 2.0
- 9.3 HIGHAV:N/AC:M/Au:N/C:C/I:C/A:C
- EPSS
- 3.46% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-254
- Affected
- mozilla/firefox
- Source
- security@mozilla.org
References
- http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00005.html
- http://www.mozilla.org/security/announce/2015/mfsa2015-109.htmlVendor Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.securityfocus.com/bid/76815
- http://www.securitytracker.com/id/1033640
- http://www.ubuntu.com/usn/USN-2743-1
- http://www.ubuntu.com/usn/USN-2743-2
- http://www.ubuntu.com/usn/USN-2743-3
- http://www.ubuntu.com/usn/USN-2743-4
- https://bugzilla.mozilla.org/show_bug.cgi?id=904886
- http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00000.html
- http://lists.opensuse.org/opensuse-security-announce/2015-10/msg00005.html
- http://www.mozilla.org/security/announce/2015/mfsa2015-109.htmlVendor Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
- http://www.securityfocus.com/bid/76815
- http://www.securitytracker.com/id/1033640
- http://www.ubuntu.com/usn/USN-2743-1
- http://www.ubuntu.com/usn/USN-2743-2
- http://www.ubuntu.com/usn/USN-2743-3
- http://www.ubuntu.com/usn/USN-2743-4
- https://bugzilla.mozilla.org/show_bug.cgi?id=904886
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.