CVE-2017-5403

HIGH

Description

When adding a range to an object in the DOM, it is possible to use "addRange" to add the range to an incorrect root object. This triggers a use-after-free, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 52 and Thunderbird < 52.

References

http://www.securityfocus.com/bid/96691

http://www.securitytracker.com/id/1037966

https://bugzilla.mozilla.org/show_bug.cgi?id=1340186

https://www.mozilla.org/security/advisories/mfsa2017-05/

https://www.mozilla.org/security/advisories/mfsa2017-09/

Details

Source: MITRE

Published: 2018-06-11

Updated: 2018-08-07

Type: CWE-416

Risk Information

CVSS v2.0

Base Score: 7.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 10

Severity: HIGH

CVSS v3.0

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL