Multiple vulnerabilities in Firefox ESR



Published: 2022-06-29 | Updated: 2022-07-05
Risk High
Patch available YES
Number of vulnerabilities 9
CVE-ID CVE-2022-34479
CVE-2022-34470
CVE-2022-34468
CVE-2022-34481
CVE-2022-31744
CVE-2022-34472
CVE-2022-34478
CVE-2022-2200
CVE-2022-34484
CWE-ID CWE-1021
CWE-416
CWE-254
CWE-190
CWE-388
CWE-939
CWE-94
CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe
Firefox ESR
Client/Desktop applications / Web browsers

Vendor Mozilla

Security Bulletin

This security bulletin contains information about 9 vulnerabilities.

1) Improper Restriction of Rendered UI Layers or Frames

EUVDB-ID: #VU64750

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2022-34479

CWE-ID: CWE-1021 - Improper Restriction of Rendered UI Layers or Frames

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to improper handling of resizing event for a popup window. A remote attacker can create a specially crafted website that can create a resized popup to overlay the address bar with its own content and perform spoofing attack.

Note, the vulnerability affects Linux installations only.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Firefox ESR: 91.0 - 91.10.0


CPE2.3 External links

http://www.mozilla.org/en-US/security/advisories/mfsa2022-25/

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

2) Use-after-free

EUVDB-ID: #VU64751

Risk: High

CVSSv3.1:

CVE-ID: CVE-2022-34470

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 in nsSHistory when handling XML documents. A remote attacker can 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 update from vendor's website.

Vulnerable software versions

Firefox ESR: 91.0 - 91.10.0


CPE2.3 External links

http://www.mozilla.org/en-US/security/advisories/mfsa2022-25/

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

3) Security features bypass

EUVDB-ID: #VU64752

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2022-34468

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 improper handling of the CSP sandbox header without "allow-scripts" option. A remote attacker use an iframe to bypass implemented CSP restriction and execute scripts if the user clicks on a javascript: link.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Firefox ESR: 91.0 - 91.10.0


CPE2.3 External links

http://www.mozilla.org/en-US/security/advisories/mfsa2022-25/

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

4) Integer overflow

EUVDB-ID: #VU64756

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2022-34481

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

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

The vulnerability exists due to integer overflow in the nsTArray_Impl::ReplaceElementsAt() function. A remote attacker can trick the victim to visit a specially crafted website, trigger an integer overflow 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

Firefox ESR: 91.0 - 91.10.0


CPE2.3 External links

http://www.mozilla.org/en-US/security/advisories/mfsa2022-25/

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

5) Security features bypass

EUVDB-ID: #VU63881

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2022-31744

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 an error when processing CSS stylesheets accessible via internal URIs, as "resource:". A remote attacker can bypass implemented Content Security Policy.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Firefox ESR: 91.0 - 91.10.0


CPE2.3 External links

http://www.mozilla.org/en-US/security/advisories/mfsa2022-25/

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

6) Error Handling

EUVDB-ID: #VU64760

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-34472

CWE-ID: CWE-388 - Error Handling

Exploit availability: No

Description

The vulnerability allows a remote attacker to influence browser behavior.

The vulnerability exists due to improper error handling when processing unavailable PAC file. If a PAC URL is set and the server that hosts the PAC is unreachable, OCSP requests are blocked, resulting in incorrect error pages being shown.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Firefox ESR: 91.0 - 91.10.0


CPE2.3 External links

http://www.mozilla.org/en-US/security/advisories/mfsa2022-25/

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

7) Improper Authorization in Handler for Custom URL Scheme

EUVDB-ID: #VU64761

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2022-34478

CWE-ID: CWE-939 - Improper Authorization in Handler for Custom URL Scheme

Exploit availability: No

Description

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

The vulnerability exists due to insecure usage of URI handlers that allow usage of ms-msdt, search, and search-ms protocols. A remote attacker can trick the victim to click on a specially crafted link and execute arbitrary code on the system, if the victim accepts the browser prompt.

The vulnerability affects Firefox on Windows.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Firefox ESR: 91.0 - 91.10.0


CPE2.3 External links

http://www.mozilla.org/en-US/security/advisories/mfsa2022-25/

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

8) Code Injection

EUVDB-ID: #VU64762

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2022-2200

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary JavaScript code.

The vulnerability exists due to improper input validation when handling JavaScript attributes. A remote attacker can pass undesired attributes to JavaScript object and perform prototype pollution and execute arbitrary JavaScript code in the browser.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Firefox ESR: 91.0 - 91.10.0


CPE2.3 External links

http://www.mozilla.org/en-US/security/advisories/mfsa2022-25/

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?

9) Buffer overflow

EUVDB-ID: #VU64763

Risk: High

CVSSv3.1:

CVE-ID: CVE-2022-34484

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 update from vendor's website.

Vulnerable software versions

Firefox ESR: 91.0 - 91.10.0


CPE2.3 External links

http://www.mozilla.org/en-US/security/advisories/mfsa2022-25/

Q & A

Can this vulnerability be exploited remotely?

How the attacker can exploit this vulnerability?

Is there known malware, which exploits this vulnerability?



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