Multiple vulnerabilities in Mozilla Thunderbird

1) Use-after-free

EUVDB-ID: #VU20818

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-11746

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error while manipulating video elements if the body is freed while still in use. A remote attacker can create a specially crafted website, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system with privileges of the current user.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mozilla Thunderbird: 60.0 - 68.0

External links

http://www.mozilla.org/en-US/security/advisories/mfsa2019-30/
http://www.mozilla.org/en-US/security/advisories/mfsa2019-29/

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) Cross-site scripting

EUVDB-ID: #VU20819

Risk: Medium

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-11744

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data within

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mozilla Thunderbird: 60.0 - 68.0

External links

http://www.mozilla.org/en-US/security/advisories/mfsa2019-30/
http://www.mozilla.org/en-US/security/advisories/mfsa2019-29/

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) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU20820

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-11742

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

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

The vulnerability exists due to the way the same origin policy is applied to cached images in a combination of SVG filters and a element. A remote attacker can violate same-origin policy and access images from another domain. 

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mozilla Thunderbird: 60.0 - 68.0

External links

http://www.mozilla.org/en-US/security/advisories/mfsa2019-30/
http://www.mozilla.org/en-US/security/advisories/mfsa2019-29/

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) Use-after-free

EUVDB-ID: #VU20823

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-11752

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when extracting a key value in IndexedDB. A remote attacker can create specially crafted webpage, trick the victim into visiting it, trigger a user-after-free error by deleting the IndexedDB key value and subsequently make the application try to extract it during conversion.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mozilla Thunderbird: 60.0 - 68.0

External links

http://www.mozilla.org/en-US/security/advisories/mfsa2019-30/
http://www.mozilla.org/en-US/security/advisories/mfsa2019-29/

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.

5) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU20826

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-11743

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

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

The vulnerability exists due to incorrect implementation of the unload event. A remote attacker can create a specially crafted web page, trick the victim into visiting and gain access to user's history through timing side-channel attacks. 

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mozilla Thunderbird: 60.0 - 68.0

External links

http://www.mozilla.org/en-US/security/advisories/mfsa2019-30/
http://www.mozilla.org/en-US/security/advisories/mfsa2019-29/

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.

6) Buffer overflow

EUVDB-ID: #VU20836

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-11740

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to boundary errors 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

Install updates from vendor's website.

Vulnerable software versions

Mozilla Thunderbird: 60.0 - 68.0

External links

http://www.mozilla.org/en-US/security/advisories/mfsa2019-30/
http://www.mozilla.org/en-US/security/advisories/mfsa2019-29/

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.

7) Information disclosure

EUVDB-ID: #VU21106

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-11739

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 an error when processing multipart messages. A remote attacker can create a specially crafted multipart/alternative message that can leak encrypted S/MIME parts when included in a a HTML reply/forward.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mozilla Thunderbird: 60.0 - 68.0

External links

http://www.mozilla.org/en-US/security/advisories/mfsa2019-30/
http://www.mozilla.org/en-US/security/advisories/mfsa2019-29/

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.