SB2023092650 - Multiple vulnerabilities in Mozilla Thunderbird

Description

This security bulletin contains information about 5 secuirty vulnerabilities.

1) Out-of-bounds write (CVE-ID: CVE-2023-5168)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in FilterNodeD2D1. A remote attacker can create a specially crafted website, trick the victim into opening, trigger an out-of-bounds write and execute arbitrary code on the target system.

2) Out-of-bounds write (CVE-ID: CVE-2023-5169)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in PathOps. A remote attacker can create a specially crafted website, trick the victim into opening, trigger an out-of-bounds write and execute arbitrary code on the target system.

3) Use-after-free (CVE-ID: CVE-2023-5171)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error during Ion compilation. A remote attacker can trick the victim to visit a specially crafted webpage, 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.

4) Double Free (CVE-ID: CVE-2023-5174)

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

The vulnerability exists due to a boundary error when spawning processes on Windows. A remote attacker can trigger a double free error and execute arbitrary code on the target system.

Note, the vulnerability affects Firefox installations on Windows when running in a non-standard configuration, such as when using "runas".

5) Buffer overflow (CVE-ID: CVE-2023-5176)

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.

Remediation

Install update from vendor's website.

References

• https://www.mozilla.org/en-US/security/advisories/mfsa2023-43/