Out-of-bounds Write Affecting thunderbird package, versions <1:60.7.1-1


Severity

Recommended
0.0
critical
0
10

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Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
10.53% (96th percentile)

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  • Snyk IDSNYK-ECHOLATEST-THUNDERBIRD-18319082
  • published26 Jul 2026
  • disclosed23 Jul 2019

Introduced: 23 Jul 2019

CVE-2019-11704  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade Echo:latest thunderbird to version 1:60.7.1-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream thunderbird package and not the thunderbird package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

A flaw in Thunderbird's implementation of iCal causes a heap buffer overflow in icalmemory_strdup_and_dequote when processing certain email messages, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7.1.

CVSS Base Scores

version 3.1