Mozilla Thunderbird up to 60.7.0 iCal icaltimezone_get_vtimezone_properties Email Message type conversion

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Mozilla Thunderbird up to 60.7.0. This affects the function icaltimezone_get_vtimezone_properties of the component iCal Handler. This manipulation as part of Email Message causes type conversion. This vulnerability is tracked as CVE-2019-11706. The attack is possible to be carried out remotely. Moreover, an exploit is present. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Mozilla Thunderbird up to 60.7.0 (Mail Client Software) and classified as problematic. Affected by this vulnerability is the function icaltimezone_get_vtimezone_properties of the component iCal Handler. The manipulation as part of a Email Message leads to a type conversion vulnerability. The CWE definition for the vulnerability is CWE-704. The product does not correctly convert an object, resource, or structure from one type to a different type. As an impact it is known to affect availability. The summary by CVE is:

A flaw in Thunderbird's implementation of iCal causes a type confusion in icaltimezone_get_vtimezone_properties when processing certain email messages, resulting in a crash. This vulnerability affects Thunderbird < 60.7.1.

The weakness was disclosed 07/23/2019 (Website). It is possible to read the advisory at security.gentoo.org. This vulnerability is known as CVE-2019-11706 since 05/03/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details and also a public exploit are known.

It is possible to download the exploit at packetstormsecurity.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176982 (Debian Security Update for thunderbird (DSA 4464-1)).

Upgrading to version 60.7.1 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (47001). The entries VDB-138484, VDB-138485 and VDB-138486 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Type conversion
CWE: CWE-704
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Thunderbird 60.7.1

Timelineinfo

05/03/2019 🔍
07/23/2019 +81 days 🔍
07/23/2019 +0 days 🔍
03/10/2025 +2057 days 🔍

Sourcesinfo

Vendor: mozilla.org

Advisory: security.gentoo.org
Status: Confirmed

CVE: CVE-2019-11706 (🔍)
GCVE (CVE): GCVE-0-2019-11706
GCVE (VulDB): GCVE-100-138487
scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 07/23/2019 21:39
Updated: 03/10/2025 12:34
Changes: 07/23/2019 21:39 (59), 07/09/2020 21:02 (1), 07/02/2024 12:17 (24), 07/03/2024 04:26 (2), 03/10/2025 12:34 (4)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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