CVE-2019-11703

moderate-risk
Published 2019-07-23

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.

Do I need to act?

~
8.3% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
!
1 public exploit available
47003
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Mozilla

References (6)

Exploit https://bugzilla.mozilla.org/show_bug.cgi?id=1553820
Third Party Advisory https://security.gentoo.org/glsa/201908-20
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2019-17/
Exploit https://bugzilla.mozilla.org/show_bug.cgi?id=1553820
Third Party Advisory https://security.gentoo.org/glsa/201908-20
Vendor Advisory https://www.mozilla.org/security/advisories/mfsa2019-17/
47
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 10/34 · Low
Exposure 5/34 · Minimal