CVE-2017-5400

critical

Description

JIT-spray targeting asm.js combined with a heap spray allows for a bypass of ASLR and DEP protections leading to potential memory corruption attacks. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.

References

Advisories
More

https://www.debian.org/security/2017/dsa-3832

https://www.debian.org/security/2017/dsa-3805

https://security.gentoo.org/glsa/201705-07

https://security.gentoo.org/glsa/201705-06

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

http://www.securityfocus.com/bid/96654

http://rhn.redhat.com/errata/RHSA-2017-0498.html

http://rhn.redhat.com/errata/RHSA-2017-0461.html

http://rhn.redhat.com/errata/RHSA-2017-0459.html

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

https://www.mozilla.org/security/advisories/mfsa2017-07/

https://www.mozilla.org/security/advisories/mfsa2017-06/

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

https://euvd.enisa.europa.eu/vulnerability/EUVD-2017-14504

https://bugzilla.mozilla.org/show_bug.cgi?id=1334933

Details

Source: Mitre, NVD

Published: 2018-06-11

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

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

Severity: Critical

EPSS

EPSS: 0.01212