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Gentoo update for Mozilla Thunderbird



Published: 2020-07-31
Severity High
Patch available YES
Number of vulnerabilities 4
CVE ID CVE-2020-15652
CVE-2020-15659
CVE-2020-6463
CVE-2020-6514
CWE ID CWE-200
CWE-119
CWE-416
CWE-358
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Gentoo Linux
Operating systems & Components / Operating system

Vendor Gentoo

Security Advisory

1) Information disclosure

Severity: Medium

CVSSv3: 5.7 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-15652

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to excessive data output in stack trace for JavaScript errors. A remote attacker can obtain result of a cross-origin redirect.

Mitigation

Update the affected packages.
mail-client/thunderbird to version: 68.11.0
mail-client/thunderbird-bin to version: 68.11.0

Vulnerable software versions

Gentoo Linux: -

CPE External links

https://security.gentoo.org/
https://security.gentoo.org/glsa/202007-64

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Buffer overflow

Severity: High

CVSSv3: 7.7 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-15659

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 web page, 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

Update the affected packages.
mail-client/thunderbird to version: 68.11.0
mail-client/thunderbird-bin to version: 68.11.0

Vulnerable software versions

Gentoo Linux: -

CPE External links

https://security.gentoo.org/
https://security.gentoo.org/glsa/202007-64

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Use-after-free

Severity: High

CVSSv3: 7.7 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-6463

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to use-after-free error in ANGLE in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger a heap-based buffer overflow and execute arbitrary code on the system.

Mitigation

Update the affected packages.
mail-client/thunderbird to version: 68.11.0
mail-client/thunderbird-bin to version: 68.11.0

Vulnerable software versions

Gentoo Linux: -

CPE External links

https://security.gentoo.org/
https://security.gentoo.org/glsa/202007-64

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Improperly implemented security check for standard

Severity: Medium

CVSSv3: 4.6 [CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C] [PCI]

CVE-ID: CVE-2020-6514

CWE-ID: CWE-358 - Improperly Implemented Security Check for Standard

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to WebRTC used the memory address of a class instance as a connection identifier. A remote attacker can use the obtained value to bypass ASLR protection.

Mitigation

Update the affected packages.
mail-client/thunderbird to version: 68.11.0
mail-client/thunderbird-bin to version: 68.11.0

Vulnerable software versions

Gentoo Linux: -

CPE External links

https://security.gentoo.org/
https://security.gentoo.org/glsa/202007-64

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.