KLA11502 Multiple vulnerabilities in Mozilla Thunderbird

Multiple vulnerabilities were found in Mozilla Thunderbird. Malicious users can exploit these vulnerabilities to cause denial of service.

Below is a complete list of vulnerabilities:

1. Heap buffer overflow vulnerability related to icalparser.c can be exploited to cause denial of service;
2. Heap buffer overflow vulnerability related to icalvalue.c can be exploited to cause denial of service;
3. Stack buffer overflow vulnerability related to icalrecur.c can be exploited to cause denial of service;
4. Type confusion vulnerability related to icalproperty.c can be exploited to cause denial of service;

Original advisories

Mozilla Foundation Security Advisory 2019-17

Exploitation

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Related products

Mozilla-Thunderbird

CVE list

CVE-2019-11703 critical

CVE-2019-11704 critical

CVE-2019-11705 critical

CVE-2019-11706 warning

Solution

Update to the latest version

Download Mozilla Thunderbird

Impacts

• DoS

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

Affected Products

• Mozilla Thunderbird earlier than 60.7.1