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kasperskyKaspersky LabKLA11829
HistoryJun 30, 2020 - 12:00 a.m.

KLA11829 Multiple vulnerabilities in Mozilla Thunderbird

2020-06-3000:00:00
Kaspersky Lab
threats.kaspersky.com
15

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

9

Confidence

High

EPSS

0.01

Percentile

83.9%

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

Below is a complete list of vulnerabilities:

  1. Memory corruption vulnerability on JavaScript Objects on ARM64 platforms can be exploited to potentially cause denial of service.
  2. SB vulnerability in add-on updates can be exploited to bypass security restrictions.
  3. Use after free vulnerability in a pointer can be exploited to potentially cause denial of service.
  4. Information disclosure vulnerbaility in URL object can be exploited to obtain sensitive information.
  5. Use after free vulnerability in nsGlobalWindowInner component can be exploited to potentially cause denial of service.
  6. Information disclosure vulnerbaility in Microsoft Exchange can be exploited remotely to obtain sensitive information.

Original advisories

MFSA2020-26

Related products

Mozilla-Thunderbird

CVE list

CVE-2020-12417 critical

CVE-2020-12421 warning

CVE-2020-12420 critical

CVE-2020-12418 warning

CVE-2020-12419 critical

CVE-2020-15646 warning

Solution

Update to the latest version

Download Thunderbird

Impacts

  • OSI

Obtain sensitive information. Exploitation of vulnerabilities with this impact can lead to capturing by abuser information, critical for user or system.

  • DoS

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

  • SB

Security bypass. Exploitation of vulnerabilities with this impact can lead to performing actions restricted by current security settings.

  • SUI

Spoof user interface. Exploitation of vulnerabilities with this impact can lead to changes in user interface to beguile user into inaccurate behavior.

Affected Products

  • Mozilla Thunderbird earlier than 68.10.0

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

AI Score

9

Confidence

High

EPSS

0.01

Percentile

83.9%