Multiple vulnerabilities in Mozilla Thunderbird

Description

Multiple vulnerabilities were found in Mozilla Thunderbird. Malicious users can exploit these vulnerabilities to obtain sensitive information, bypass security restrictions, execute arbitrary code, cause denial of service, spoof user interface.

Below is a complete list of vulnerabilities:

1. Security bypass vulnerability in ‘Copy as cURL’ component can be exploited to bypass security restrictions and obtain sensitive information.
2. Security bypass vulnerability in ‘Copy as cURL’ component on Windows can be exploited to bypass security restrictions and execute arbitrary code.
3. Memory corruption vulnerability can be exploited to execute arbitrary code.
4. Use after free vulnerability in Web Worker can be exploited to potentially cause denial of service.
5. A spoofing vulnerability can be exploited remotely to spoof user interface.
6. Stack buffer overflow vulnerability in SCTP component can be exploited to potentially cause denial of service.

Original advisories

• MFSA2020-18

Related products

• Mozilla-Thunderbird

CVE list

• CVE-2020-6831
  critical
• CVE-2020-12387
  high
• CVE-2020-12393
  warning
• CVE-2020-12392
  warning
• CVE-2020-12395
  critical
• CVE-2020-12397
  warning

Read more

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