DEBIAN-CVE-2019-9791

Advisory lineage Upstream: 1 Downstream: 4
Upstream
CVE-2019-9791
Published: 26 Apr 2019, 17:29
Last modified:28 Apr 2026, 20:21

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

26 Apr 2019, 17:29
Published
Vulnerability first disclosed
28 Apr 2026, 20:21
Last Modified
Vulnerability information updated

Description

The type inference system allows the compilation of functions that can cause type confusions between arbitrary objects when compiled through the IonMonkey just-in-time (JIT) compiler and when the constructor function is entered through on-stack replacement (OSR). This allows for possible arbitrary reading and writing of objects during an exploitable crash. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.

CVSS Metrics

  • v3.1•CRITICAL•Score: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Systems

  • debian•firefox-esr

    < 60.6.0esr-1 | < 60.6.0esr-1 | < 60.6.0esr-1 | < 60.6.0esr-1

  • debian•thunderbird

    < 1:60.6.1-1 | < 1:60.6.1-1 | < 1:60.6.1-1 | < 1:60.6.1-1

References (1)