Vulnerability Monitor

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CVE-2019-9792

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.

Published

2019-04-26T17:29:01.697

Last Modified

2024-11-21T04:52:19.110

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

6.4

Weaknesses
  • Type: Primary
    CWE-787
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application mozilla firefox < 66.0 Yes
Application mozilla firefox_esr < 60.6.0 Yes
Application mozilla thunderbird < 60.6.0 Yes
Operating System redhat enterprise_linux 8.0 Yes
Operating System redhat enterprise_linux_eus 8.1 Yes
Operating System redhat enterprise_linux_eus 8.2 Yes
Operating System redhat enterprise_linux_eus 8.4 Yes
Operating System redhat enterprise_linux_server_aus 8.2 Yes
Operating System redhat enterprise_linux_server_aus 8.4 Yes
Operating System redhat enterprise_linux_server_tus 8.2 Yes
Operating System redhat enterprise_linux_server_tus 8.4 Yes
References