CVE-2019-17026
Summary
| CVE | CVE-2019-17026 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2020-03-02 05:15:00 UTC |
| Updated | 2022-11-16 03:00:00 UTC |
| 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. |
Risk And Classification
EPSS: 0.648050000 probability, percentile 0.984510000 (date 2026-04-01)
CISA KEV: Listed on 2021-11-03; due 2022-05-03; ransomware use Unknown
Problem Types: CWE-843
CISA Known Exploited Vulnerability
| Vendor | Mozilla |
|---|---|
| Product | Firefox and Thunderbird |
| Name | Mozilla Firefox And Thunderbird Type Confusion Vulnerability |
| Required Action | Apply updates per vendor instructions. |
| Notes | https://nvd.nist.gov/vuln/detail/CVE-2019-17026 |
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Canonical | Ubuntu Linux | 16.04 | All | All | All |
| Application | Mozilla | Firefox | All | All | All | All |
| Application | Mozilla | Firefox | All | All | All | All |
| Application | Mozilla | Firefox Esr | All | All | All | All |
| Application | Mozilla | Firefox Esr | All | All | All | All |
| Application | Mozilla | Thunderbird | All | All | All | All |
| Application | Mozilla | Thunderbird | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Mozilla Firefox: Multiple vulnerabilities (GLSA 202003-02) — Gentoo security | GENTOO | security.gentoo.org | |
| Security Vulnerabilities fixed in Firefox 72.0.1 and Firefox ESR 68.4.1 — Mozilla | MISC | www.mozilla.org | Vendor Advisory |
| Security Vulnerabilities fixed in Thunderbird 68.4.1 — Mozilla | MISC | www.mozilla.org | Vendor Advisory |
| Access Denied | MISC | bugzilla.mozilla.org | Permissions Required |
| USN-4335-1: Thunderbird vulnerabilities | Ubuntu security notices | UBUNTU | usn.ubuntu.com | |
| Firefox 72 IonMonkey JIT Type Confusion ≈ Packet Storm | MISC | packetstormsecurity.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
| CISA Known Exploited Vulnerabilities catalog | CISA | www.cisa.gov | kev |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 296077 Oracle Solaris 11.4 Support Repository Update (SRU) 18.4.0 Missing (CPUJAN2020)
- 376884 Alibaba Cloud Linux Security Update for firefox (ALINUX2-SA-2020:0016)
- 377014 Alibaba Cloud Linux Security Update for thunderbird (ALINUX2-SA-2020:0017)
- 500925 Alpine Linux Security Update for firefox-esr
- 500945 Alpine Linux Security Update for firefox
- 503830 Alpine Linux Security Update for firefox
- 671519 EulerOS Security Update for mozjs60 (EulerOS-SA-2022-1431)
- 671545 EulerOS Security Update for mozjs60 (EulerOS-SA-2022-1452)