Mozilla Firefox/Thunderbird TransportSecurityInfo input validation

CVSS Meta Temp Score
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CTI Interest Score
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4.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox and Thunderbird. It has been declared as problematic. Impacted is an unknown function of the component TransportSecurityInfo. Such manipulation leads to input validation. This vulnerability is listed as CVE-2018-12385. The attack must be carried out locally. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Mozilla Firefox and Thunderbird (Web Browser) (version now known). Affected by this issue is some unknown processing of the component TransportSecurityInfo. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. CVE summarizes:

A potentially exploitable crash in TransportSecurityInfo used for SSL can be triggered by data stored in the local cache in the user profile directory. This issue is only exploitable in combination with another vulnerability allowing an attacker to write data into the local cache or from locally installed malware. This issue also triggers a non-exploitable startup crash for users switching between the Nightly and Release versions of Firefox if the same profile is used. This vulnerability affects Thunderbird < 60.2.1, Firefox ESR < 60.2.1, and Firefox < 62.0.2.

The bug was discovered 09/21/2018. The weakness was presented 10/18/2018 as Bug 1490585 as confirmed bug report (Bugzilla). The advisory is shared for download at bugzilla.mozilla.org. This vulnerability is handled as CVE-2018-12385 since 06/14/2018. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 117690 (openSUSE Security Update : MozillaFirefox (openSUSE-2018-1042)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176516 (Debian Security Update for thunderbird (DSA 4327-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (117690) and SecurityFocus (BID 105380†). See VDB-109144, VDB-125761, VDB-125762 and VDB-125763 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.7

VulDB Base Score: 2.5
VulDB Temp Score: 2.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.0
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 117690
Nessus Name: openSUSE Security Update : MozillaFirefox (openSUSE-2018-1042)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/14/2018 🔍
09/21/2018 +99 days 🔍
09/21/2018 +0 days 🔍
09/24/2018 +2 days 🔍
09/25/2018 +1 days 🔍
10/18/2018 +22 days 🔍
10/18/2018 +0 days 🔍
10/19/2018 +1 days 🔍
05/30/2023 +1684 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: Bug 1490585
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-12385 (🔍)
GCVE (CVE): GCVE-0-2018-12385
GCVE (VulDB): GCVE-100-125768

OVAL: 🔍

SecurityFocus: 105380 - Mozilla Firefox and Firefox ESR CVE-2018-12385 Denial of Service Vulnerability
SecurityTracker: 1041700

See also: 🔍

Entryinfo

Created: 10/19/2018 06:47
Updated: 05/30/2023 11:03
Changes: 10/19/2018 06:47 (76), 04/05/2020 14:15 (4), 05/30/2023 11:03 (4)
Complete: 🔍
Cache ID: 216::103

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