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.
References
Link | Resource |
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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 |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Information
Published : 2019-04-26 10:29
Updated : 2022-03-30 11:49
NVD link : CVE-2019-9792
Mitre link : CVE-2019-9792
JSON object : View
CWE
CWE-787
Out-of-bounds Write
Products Affected
mozilla
- firefox_esr
- thunderbird
- firefox
redhat
- enterprise_linux
- enterprise_linux_server_aus
- enterprise_linux_server_tus
- enterprise_linux_eus