CVE-2018-5126

critical
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

Memory safety bugs were reported in Firefox 58. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 59.

References

http://www.securityfocus.com/bid/103386

http://www.securitytracker.com/id/1040514

https://bugzilla.mozilla.org/buglist.cgi?bug_id=1433671%2C1414768%2C1416523%2C1425691%2C1441006%2C1429768%2C1426002%2C1297740%2C1435566%2C1432855%2C1442318%2C1421963%2C1422631%2C1426603%2C1404297%2C1425257%2C1373934%2C1423173%2C1416940

https://usn.ubuntu.com/3596-1/

https://www.mozilla.org/security/advisories/mfsa2018-06/

Details

Source: MITRE

Published: 2018-06-11

Updated: 2018-08-06

Type: CWE-119

Risk Information

CVSS v2

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

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

Tenable Plugins

View all (6 total)

IDNameProductFamilySeverity
700328Mozilla Firefox < 59 Multiple VulnerabilitiesNessus Network MonitorWeb Clients
high
108949Ubuntu 14.04 LTS / 16.04 LTS : firefox regression (USN-3596-2)NessusUbuntu Local Security Checks
critical
108377Mozilla Firefox < 59 Multiple VulnerabilitiesNessusWindows
critical
108375Mozilla Firefox < 59 Multiple Vulnerabilities (macOS)NessusMacOS X Local Security Checks
critical
108370Ubuntu 14.04 LTS / 16.04 LTS / 17.10 : Firefox vulnerabilities (USN-3596-1)NessusUbuntu Local Security Checks
critical
108315FreeBSD : mozilla -- multiple vulnerabilities (c71cdc95-3c18-45b7-866a-af28b59aabb5)NessusFreeBSD Local Security Checks
critical