DEBIAN-CVE-2019-9793

Advisory lineage Upstream: 1 Downstream: 4
Upstream
CVE-2019-9793
Published: 26 Apr 2019, 17:29
Last modified:28 Apr 2026, 20:21

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
5.9 MEDIUM
3.0 (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

A mechanism was discovered that removes some bounds checking for string, array, or typed array accesses if Spectre mitigations have been disabled. This vulnerability could allow an attacker to create an arbitrary value in compiled JavaScript, for which the range analysis will infer a fully controlled, incorrect range in circumstances where users have explicitly disabled Spectre mitigations. *Note: Spectre mitigations are currently enabled for all users by default settings.*. This vulnerability affects Thunderbird < 60.6, Firefox ESR < 60.6, and Firefox < 66.

CVSS Metrics

  • v3.0•MEDIUM•Score: 5.9CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

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)