VDB-138472 · CVE-2019-11691 · Qualys 371797

Mozilla Firefox/Thunderbird/Firefox ESR XMLHttpRequest use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.9$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Mozilla Firefox, Thunderbird and Firefox ESR. This issue affects some unknown processing of the component XMLHttpRequest. Executing a manipulation as part of Request can lead to use after free. This vulnerability is tracked as CVE-2019-11691. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Mozilla Firefox, Thunderbird and Firefox ESR (Web Browser) (unknown version). It has been declared as problematic. This vulnerability affects an unknown code block of the component XMLHttpRequest. The manipulation as part of a Request leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect availability. CVE summarizes:

A use-after-free vulnerability can occur when working with XMLHttpRequest (XHR) in an event loop, causing the XHR main thread to be called after it has been freed. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7, Firefox < 67, and Firefox ESR < 60.7.

The weakness was disclosed 07/23/2019. This vulnerability was named CVE-2019-11691 since 05/03/2019. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 06/06/2024).

The commercial vulnerability scanner Qualys is able to test this issue with plugin 371797 (Mozilla Firefox Multiple Security Vulnerabilities (MFSA 2019-13,MFSA2019-14)).

Upgrading eliminates this vulnerability.

The entries VDB-138475, VDB-138474 and VDB-138473 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 6.9

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/03/2019 🔍
07/23/2019 +81 days 🔍
07/23/2019 +0 days 🔍
06/06/2024 +1779 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: mozilla.org
Status: Not defined

CVE: CVE-2019-11691 (🔍)
GCVE (CVE): GCVE-0-2019-11691
GCVE (VulDB): GCVE-100-138472
See also: 🔍

Entryinfo

Created: 07/23/2019 21:32
Updated: 06/06/2024 01:39
Changes: 07/23/2019 21:32 (38), 07/09/2020 18:35 (18), 11/06/2023 07:47 (4), 11/06/2023 07:52 (1), 06/06/2024 01:39 (16)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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