CVE-2015-4487

high

Description

The nsTSubstring::ReplacePrep function in Mozilla Firefox before 40.0, Firefox ESR 38.x before 38.2, and Firefox OS before 2.2 might allow remote attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via unknown vectors, related to an "overflow."

References

Advisories
More

http://www.ubuntu.com/usn/USN-2702-2

http://www.ubuntu.com/usn/USN-2702-1

http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html

http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00015.html

http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00014.html

https://security.gentoo.org/glsa/201605-06

https://euvd.enisa.europa.eu/vulnerability/EUVD-2015-4507

https://bugzilla.mozilla.org/show_bug.cgi?id=1171603

http://www.ubuntu.com/usn/USN-2712-1

http://www.ubuntu.com/usn/USN-2702-3

http://www.securitytracker.com/id/1033372

http://www.securitytracker.com/id/1033247

http://www.mozilla.org/security/announce/2015/mfsa2015-90.html

http://www.debian.org/security/2015/dsa-3410

http://www.debian.org/security/2015/dsa-3333

http://rhn.redhat.com/errata/RHSA-2015-1682.html

http://rhn.redhat.com/errata/RHSA-2015-1586.html

http://lists.opensuse.org/opensuse-updates/2015-08/msg00031.html

http://lists.opensuse.org/opensuse-updates/2015-08/msg00030.html

http://lists.opensuse.org/opensuse-security-announce/2015-11/msg00025.html

http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00016.html

http://lists.opensuse.org/opensuse-security-announce/2015-08/msg00021.html

Details

Source: Mitre, NVD

Published: 2015-08-16

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: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.03825