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CVE-2019-17026

HIGHCISA KEV

8.8

Description

Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR < 68.4.1, Thunderbird < 68.4.1, and Firefox < 72.0.1.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published3/2/2020

Last Modified11/4/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorMozilla

ProductFirefox and Thunderbird

Vulnerability NameMozilla Firefox And Thunderbird Type Confusion Vulnerability

KEV Date Added2021-11-03

Remediation Due Date2022-05-03

Ransomware UseUnknown

Affected Products

canonical:ubuntu_linuxmozilla:firefoxmozilla:thunderbird

Weaknesses (CWE)

CWE-843CWE-843

References

http://packetstormsecurity.com/files/162568/Firefox-72-IonMonkey-JIT-Type-Confusion.html(security@mozilla.org)

https://bugzilla.mozilla.org/show_bug.cgi?id=1607443(security@mozilla.org)

https://security.gentoo.org/glsa/202003-02(security@mozilla.org)

https://usn.ubuntu.com/4335-1/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2020-03/(security@mozilla.org)

https://www.mozilla.org/security/advisories/mfsa2020-04/(security@mozilla.org)

http://packetstormsecurity.com/files/162568/Firefox-72-IonMonkey-JIT-Type-Confusion.html(af854a3a-2127-422b-91ae-364da2661108)

https://bugzilla.mozilla.org/show_bug.cgi?id=1607443(af854a3a-2127-422b-91ae-364da2661108)

https://security.gentoo.org/glsa/202003-02(af854a3a-2127-422b-91ae-364da2661108)

https://usn.ubuntu.com/4335-1/(af854a3a-2127-422b-91ae-364da2661108)

https://www.mozilla.org/security/advisories/mfsa2020-03/(af854a3a-2127-422b-91ae-364da2661108)

https://www.mozilla.org/security/advisories/mfsa2020-04/(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-17026(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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