CVE-2018-12366

Enterprise Linux Desktop vulnerability

CVSS

6.5

EPSS

3.2%

EPSS pct

87th

Exploited

No known

An invalid grid size during QCMS (color profile) transformations can result in the out-of-bounds read interpreted as a float value. This could leak private data into the output. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.

Affected vendor

Redhat

Affected product

Enterprise Linux Desktop

CVSS vector

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

Weakness type (CWE)

CWE-125 — Out-of-bounds Read

Published

2018-10-18

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no privileges, user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 3.2% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 87% of all scored CVEs.

Check your external exposure to CVE-2018-12366

Confirm whether Redhat Enterprise Linux Desktop is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2018-12366.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-12366

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