Multiple vulnerabilities in Mozilla Thunderbird



Published: 2021-06-03
Risk High
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2021-29964
CVE-2021-29967
CWE-ID CWE-125
CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Mozilla Thunderbird
Client/Desktop applications / Messaging software

Vendor Mozilla

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Out-of-bounds read

EUVDB-ID: #VU53706

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2021-29964

CWE-ID: CWE-125 - Out-of-bounds Read

Exploit availability: No

Description

The vulnerability allows a local application to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition. A locally-installed hostile program could send WM_COPYDATA messages that Firefox would processing incorrectly and will result in out-of-bounds read.

Note, the vulnerability affects Windows installations only.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Mozilla Thunderbird: 78.0 - 78.10.2, 68.0 - 68.12.1, 60.0 - 60.9.1


CPE2.3 External links

http://www.mozilla.org/en-US/security/advisories/mfsa2021-26/

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?

2) Buffer overflow

EUVDB-ID: #VU53707

Risk: High

CVSSv3.1:

CVE-ID: CVE-2021-29967

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing HTML content. A remote attacker can create a specially crafted webpage, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Mozilla Thunderbird: 78.0 - 78.10.2, 68.0 - 68.12.1, 60.0 - 60.9.1


CPE2.3 External links

http://www.mozilla.org/en-US/security/advisories/mfsa2021-26/

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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