DEBIAN-CVE-2019-11759

Advisory lineage Upstream: 1 Downstream: 4
Upstream
CVE-2019-11759
Published: 08 Jan 2020, 20:15
Last modified:28 Apr 2026, 20:20

Vulnerability Summary

Overall Risk (default)
medium
35/100
CVSS Score
8.8 HIGH
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

08 Jan 2020, 20:15
Published
Vulnerability first disclosed
28 Apr 2026, 20:20
Last Modified
Vulnerability information updated

Description

An attacker could have caused 4 bytes of HMAC output to be written past the end of a buffer stored on the stack. This could be used by an attacker to execute arbitrary code or more likely lead to a crash. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

CVSS Metrics

  • v3.1•HIGH•Score: 8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Systems

  • debian•firefox-esr

    < 68.2.0esr-1 | < 68.2.0esr-1 | < 68.2.0esr-1 | < 68.2.0esr-1

  • debian•thunderbird

    < 1:68.2.1-1 | < 1:68.2.1-1 | < 1:68.2.1-1 | < 1:68.2.1-1

References (1)