Is CVE-2018-12383 in the CISA KEV catalog?

No. CVE-2018-12383 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-12383?

CVE-2018-12383 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2018-12383?

CVE-2018-12383 has an EPSS score of 0.46% (37th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-12383?

Upgrade firefox on debian unstable to 62.0-1 or later. Fixes are available for 7 affected products.

CVE & CISA-KEV Catalog

CVE-2018-12383

MEDIUM

5.5

CVSS v3

NVD

Description

If a user saved passwords before Firefox 58 and then later set a master password, an unencrypted copy of these passwords is still accessible. This is because the older stored password file was not deleted when the data was copied to a new format starting in Firefox 58. The new master password is added only on the new file. This could allow the exposure of stored password data outside of user expectations. This vulnerability affects Firefox < 62, Firefox ESR < 60.2.1, and Thunderbird < 60.2.1.

CWE-522

How to fix

Remediation Available

firefoxDebian

Fixed in:62.0-1CVE-2018-12383

firefoxUbuntu

Fixed in:62.0+build2-0ubuntu0.14.04.3USN-3761-1

Fixed in:62.0+build2-0ubuntu0.16.04.3USN-3761-1

Fixed in:62.0+build2-0ubuntu0.18.04.3USN-3761-1

thunderbirdUbuntu

Fixed in:1:60.2.1+build1-0ubuntu0.14.04.2USN-3793-1

Fixed in:1:60.2.1+build1-0ubuntu0.16.04.4USN-3793-1

Fixed in:1:60.2.1+build1-0ubuntu0.18.04.2USN-3793-1

DeveloperEditionWindows application

Affected:62.0Fixed in:62.0Mozilla

Mozilla Firefox (en-US)Windows application

Affected:62.0Fixed in:62.0Mozilla

Mozilla Firefox ESR (en-US)Windows application

Affected:60.2.1Fixed in:60.2.1Mozilla

Mozilla Thunderbird (en-US)Windows application

Affected:60.2.1Fixed in:60.2.1Mozilla

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Exploit Intelligence

0.46%probability of exploitation in 30 days

37thpercentile

Low risk: more likely to be exploited than 37% of all known CVEs.

References

Exploit1

bugzilla.mozilla.org

Vendor Advisory3

Third-Party Advisory14

Related Vulnerabilities

Other CWE-522 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2019-17662	Critical	9.8	97%	-	-
CVE-2020-29583	Critical	9.8	90%	KEV	-
CVE-2021-30116	Critical	10.0	86%	KEV + Ransom	Fix
CVE-2024-44000	Critical	9.8	83%	-	Fix
CVE-2018-9160	Critical	9.8	77%	-	-
CVE-2017-9248	Critical	9.8	75%	KEV	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.