SB2022030807 - Multiple vulnerabilities in Mozilla Firefox and Firefox ESR
Published: March 8, 2022 Updated: March 9, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 8 secuirty vulnerabilities.
1) Insufficient UI Warning of Dangerous Operations (CVE-ID: CVE-2022-26383)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to an error when resizing a popup after requesting fullscreen access. The popup would not display the fullscreen notification, which allows a remote attacker to perform spoofing attack.
2) Security restrictions bypass (CVE-ID: CVE-2022-26384)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to a logic error when processing iframes. If an attacker can control the contents of an iframe sandboxed with allow-popups but not allow-scripts, it is possible to craft a link that, when clicked, would lead to JavaScript execution in violation of the sandbox.
3) Time-of-check Time-of-use (TOCTOU) Race Condition (CVE-ID: CVE-2022-26387)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to a race condition when verifying signatures during Firefox add-on installation. A remote attacker can replace the underlying add-on file while the user was confirming the prompt and install a malicious add-on on the system.
4) Use-after-free (CVE-ID: CVE-2022-26381)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when processing HTML content A remote attacker can trigger a use-after-free by forcing a text reflow in an SVG object and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
5) Information disclosure (CVE-ID: CVE-2022-26382)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to an error in the Autofill tooltips implementation when the text is rendered using page fonts. A remote attacker can obtain potentially sensitive information via a side-channel attack.
6) Use-after-free (CVE-ID: CVE-2022-26385)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error during thread shutdown. A remote attacker can force the user to close the thread, 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.
7) Buffer overflow (CVE-ID: CVE-2022-0843)
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.
8) Improper access control (CVE-ID: CVE-2022-26386)
The vulnerability allows a local user to gain access to victim's downloads.
The vulnerability exists due to browser stores files in the /tmp folder, which is accessible by all local users. A local user can read files from this folder and gain access to potentially sensitive information.
Note, the vulnerability affects Firefox ESR on macOS and Linux.
Remediation
Install update from vendor's website.