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kasperskyKaspersky LabKLA11228
HistoryMar 26, 2018 - 12:00 a.m.

KLA11228 A use-after-free vulnerability in Mozilla Firefox and Firefox ESR

2018-03-2600:00:00
Kaspersky Lab
threats.kaspersky.com
87

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.5 High

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

75.5%

A use-after-free vulnerability was found in Mozilla Firefox. By exploiting this vulnerability malicious users can cause denial of service.

Original advisories

Mozilla Foundation Security Advisory 2018-10

Related products

Mozilla-Firefox

Mozilla-Firefox-ESR

CVE list

CVE-2018-5148 critical

Solution

Update to the latest versionDownload Mozilla Firefox

Download Mozilla Firefox ESR

Impacts

  • DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

Affected Products

  • Firefox earlier than 59.0.2Firefox ESRΒ earlier than 52.7.3

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

9.5 High

AI Score

Confidence

High

0.005 Low

EPSS

Percentile

75.5%