Home/CVE/Incorrect alias information in IonMonkey JIT compiler for Array.prototype.slice method may lead to missing bounds check
CVE

CVE-2019-9810

Incorrect alias information in IonMonkey JIT compiler for Array.prototype.slice method may lead to missing bounds check

Incorrect alias information in IonMonkey JIT compiler for Array.prototype.slice method may lead to missing bounds check and a buffer overflow. This vulnerability affects Firefox < 66.0.1, Firefox ESR < 60.6.1, and Thunderbird < 60.6.1.

HIGH · CVSS 8.8 EPSS 0.80195
Act now
  • EPSS ≥ 0.50 - high probability of exploitation in the next 30 days
  • EPSS percentile: top 1% of all CVEs by exploitation likelihood
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

7
mozilla firefox< 60.6.1
mozilla firefox< 66.0.1
mozilla thunderbird< 60.6.1
redhat enterprise linuxall versions
redhat enterprise linux eusall versions
redhat enterprise linux server ausall versions
redhat enterprise linux server tusall versions
⚠

Public Exploits & PoCs

4
localMozilla FireFox (Windows 10 x64) - Full Chain Client Side Attack2019-12-07
dosFirefox < 66.0.1 - 'Array.prototype.slice' Buffer Overflow2019-03-26
pocpacketstormsecurity.com · Mozilla-Firefox-Windows-64-Bit-Chain-Exploit.htmlpacketstormsecurity.com
pocbugzilla.mozilla.org · show_bug.cgi?id=1537924bugzilla.mozilla.org
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighSQLite Firefox Profile Data DB Access
▣

Scoring & Timeline

8.8
HIGH · CVSS v3.1 · security@mozilla.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Apr 2019 · 05:29 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

18
suse-csafopenSUSE-SU-2024:14572-1
suse-csafopenSUSE-SU-2024:10600-1
suse-csafopenSUSE-SU-2024:10601-1
suse-csafopenSUSE-SU-2019:1162-1
suse-csafSUSE-SU-2019:0871-1
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.mozilla.org/security/advisories/mfsa2019-09/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-10/Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-12/Vendor Advisory
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