CVE-2019-9792

CVSS V2 High 7.5 CVSS V3 Critical 9.8
Description
The IonMonkey just-in-time (JIT) compiler can leak an internal JS_OPTIMIZED_OUT magic value to the running script during a bailout. This magic value can then be used by JavaScript to achieve memory corruption, which results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.
Overview
  • CVE ID
  • CVE-2019-9792
  • Assigner
  • security@mozilla.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2019-04-26T17:29:01
  • Last Modified Date
  • 2022-03-30T18:49:19
Weakness Enumerations
CWE URL
CWE-787 http://cwe.mitre.org/data/definitions/787.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* 1 OR 66.0
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:* 1 OR 60.6.0
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:* 1 OR 60.6.0
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_eus:8.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_server_aus:8.4:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux_server_tus:8.4:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 7.5
  • Severity
  • HIGH
  • Exploitability Score
  • 10
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9.8
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 3.9
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://www.mozilla.org/security/advisories/mfsa2019-11/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-08/ Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-07/ Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1532599 Exploit Issue Tracking Vendor Advisory
https://access.redhat.com/errata/RHSA-2019:0966 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1144 Third Party Advisory
http://packetstormsecurity.com/files/153106/Spidermonkey-IonMonkey-JS_OPTIMIZED_OUT-Value-Leak.html Exploit Third Party Advisory VDB Entry
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2019-9792
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9792
History
Created Old Value New Value Data Type Notes
2022-04-04 00:40:04 Added to TrackCVE
2022-12-03 20:09:02 2019-04-26T17:29Z 2019-04-26T17:29:01 CVE Published Date updated
2022-12-03 20:09:02 2022-03-30T18:49:19 CVE Modified Date updated
2022-12-03 20:09:02 Analyzed Vulnerability Status updated