VulnerabilityModified
CVE-2019-11703
A flaw in Thunderbird's implementation of iCal causes a heap buffer overflow in parser_get_next_char when processing certain email messages, resulting in a potentially exploitable crash.
CRITICAL 9.8EPSS 10.5%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 10.5%, higher than 95% of all known CVEs. Patch or mitigate before the next change window.
Description
A flaw in Thunderbird's implementation of iCal causes a heap buffer overflow in parser_get_next_char when processing certain email messages, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.7.1.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 10.53% probability · 95th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- mozilla/thunderbird
- Source
- security@mozilla.org
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1553820Exploit, Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/201908-20Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-17/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1553820Exploit, Issue Tracking, Vendor Advisory
- https://security.gentoo.org/glsa/201908-20Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2019-17/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.