8.8

CVE-2019-11707

Warning

A type confusion vulnerability can occur when manipulating JavaScript objects due to issues in Array.pop. This can allow for an exploitable crash. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 60.7.1, Firefox < 67.0.3, and Thunderbird < 60.7.2.

Data is provided by the National Vulnerability Database (NVD)
Mozilla ≫ Firefox SwEditionesr Version < 60.7.1
Mozilla ≫ Firefox Version < 60.7.3
Mozilla ≫ Thunderbird Version < 60.7.2

23.05.2022: CISA Known Exploited Vulnerabilities (KEV) Catalog

Mozilla Firefox and Thunderbird Type Confusion Vulnerability

Vulnerability

Mozilla Firefox and Thunderbird contain a type confusion vulnerability that can occur when manipulating JavaScript objects due to issues in Array.pop, allowing for an exploitable crash.

Description

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Required actions
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 81.06% 0.991
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvd@nist.gov 7.5 10 6.4
AV:N/AC:L/Au:N/C:P/I:P/A:P
134c704f-9b21-4f2e-91b3-4a467353bcc0 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-843 Access of Resource Using Incompatible Type ('Type Confusion')

The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

https://bugzilla.mozilla.org/show_bug.cgi?id=1544386
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