Multiple vulnerabilities in Mozilla Firefox and Firefox ESR

Published: 2022-09-20 | Updated: 2022-10-02

Risk	High
Patch available	YES
Number of vulnerabilities	8
CVE-ID	CVE-2022-40959 CVE-2022-40960 CVE-2022-40958 CVE-2022-40961 CVE-2022-40956 CVE-2022-40957 CVE-2022-40962 CVE-2022-3266
CWE-ID	CWE-254 CWE-416 CWE-119 CWE-20 CWE-125
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Mozilla Firefox Client/Desktop applications / Web browsers Firefox ESR Client/Desktop applications / Web browsers Firefox for Android Mobile applications / Apps for mobile phones
Vendor	Mozilla

Security Bulletin

This security bulletin contains information about 8 vulnerabilities.

1) Security features bypass

EUVDB-ID: #VU67500

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-40959

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to incorrect initialization of FeaturePolicy on all pages during iframe navigation. A remote attacker can trick the victim to open a specially crafted website, bypass FeaturePolicy restrictions and force the browser to leak device permissions into untrusted subdocuments.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 90.0 - 104.0.2

Firefox ESR: 91.0 - 102.2.0

Firefox for Android: 100.1.0 - 104.2.0

CPE2.3

External links

https://www.mozilla.org/en-US/security/advisories/mfsa2022-40/
https://www.mozilla.org/en-US/security/advisories/mfsa2022-41/

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

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

2) Use-after-free

EUVDB-ID: #VU67501

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-40960

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 caused by a concurrent use of the URL parser with non-UTF-8 data. A remote attacker can trick the victim to visit a specially crafted website, trigger a use-after-free error and execute arbitrary code on the system.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 90.0 - 104.0.2

Firefox ESR: 91.0 - 102.2.0

Firefox for Android: 100.1.0 - 104.2.0

CPE2.3

External links

https://www.mozilla.org/en-US/security/advisories/mfsa2022-40/
https://www.mozilla.org/en-US/security/advisories/mfsa2022-41/

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

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

3) Security features bypass

EUVDB-ID: #VU67502

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-40958

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to incorrect handling of cookies. A remote attacker with access to a shared subdomain can inject a cookies with certain special characters, bypass Secure Context restriction for cookies with __Host and __Secure prefix and overwrite these cookies, potentially allowing session fixation attacks.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 90.0 - 104.0.2

Firefox ESR: 91.0 - 102.2.0

Firefox for Android: 100.1.0 - 104.2.0

CPE2.3

External links

https://www.mozilla.org/en-US/security/advisories/mfsa2022-40/
https://www.mozilla.org/en-US/security/advisories/mfsa2022-41/

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

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

4) Buffer overflow

EUVDB-ID: #VU67499

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-40961

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 a boundary error within the graphics driver. A remote attacker can trick the victim into opening a specially crafted website, 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

Firefox for Android: 100.1.0 - 104.2.0

CPE2.3

External links

https://www.mozilla.org/en-US/security/advisories/mfsa2022-40/

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

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

5) Security features bypass

EUVDB-ID: #VU67503

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-40956

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to some requests may ignore the CSP's base-uri settings when handling HTML base element injection. A remote attacker can force the browser to accept the injected element's base instead of the original code, leading to Content Security Policy bypass.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 90.0 - 104.0.2

Firefox ESR: 91.0 - 102.2.0

Firefox for Android: 100.1.0 - 104.2.0

CPE2.3

External links

https://www.mozilla.org/en-US/security/advisories/mfsa2022-40/
https://www.mozilla.org/en-US/security/advisories/mfsa2022-41/

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

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

6) Input validation error

EUVDB-ID: #VU67504

Risk: Medium

CVSSv4.0: 4.8 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-40957

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to inconsistent data in instruction and data cache when creating wasm code. A remote attacker can trick the victim to open a specially crafted web page, trigger memory corruption and potentially execute arbitrary code.

Note, the vulnerability affects Firefox on ARM64 platforms only.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Firefox for Android: 100.1.0 - 104.2.0

Mozilla Firefox: 90.0 - 104.0.2

Firefox ESR: 91.0 - 102.2.0

CPE2.3

External links

https://www.mozilla.org/en-US/security/advisories/mfsa2022-40/
https://www.mozilla.org/en-US/security/advisories/mfsa2022-41/

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

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

7) Buffer overflow

EUVDB-ID: #VU67505

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-40962

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 a boundary error when processing HTML content. A remote attacker can create a specially crafted website, 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 Firefox: 90.0 - 104.0.2

Firefox ESR: 91.0 - 102.2.0

Firefox for Android: 100.1.0 - 104.2.0

CPE2.3

External links

https://www.mozilla.org/en-US/security/advisories/mfsa2022-40/
https://www.mozilla.org/en-US/security/advisories/mfsa2022-41/

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

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

8) Out-of-bounds read

EUVDB-ID: #VU67788

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-3266

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to a boundary condition when decoding H264 video. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger an out-of-bounds read error and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 90.0 - 104.0.2

Firefox ESR: 91.0 - 102.2.0

Firefox for Android: 90.1.0 - 104.2.0

CPE2.3

External links

https://www.mozilla.org/en-US/security/advisories/mfsa2022-40/
https://www.mozilla.org/en-US/security/advisories/mfsa2022-41/

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

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