SB2023100313 - Ubuntu update for firefox

Description

This security bulletin contains information about 8 secuirty vulnerabilities.

1) 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.

2) Memory leak (CVE-ID: CVE-2023-5170)

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

The vulnerability exists due memory leak during canvas rendering. A remote attacker can trick the victim to visit a specially crafted webpage, trigger memory leak of a privileged process by unexpectedly changing the surface and gain access to potentially sensitive information. This memory leak could be used to effect a sandbox escape if the correct data was leaked.

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) Use-after-free (CVE-ID: CVE-2023-5172)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error in Ion Engine. A remote attacker can trick the victim to open a specially crafted web page, 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.

5) Out-of-bounds write (CVE-ID: CVE-2023-5173)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input. A remote attacker can trick the victim to open a specially crafted HTML file to trigger an out-of-bounds write and execute arbitrary code on the target system.

The vulnerability affects Firefox if a non-standard preference allowing non-HTTPS Alternate Services (network.http.altsvc.oe) is enabled.

6) Use-after-free (CVE-ID: CVE-2023-5175)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free ImageBitmap during process shutdown. 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.

7) 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.

8) Heap-based buffer overflow (CVE-ID: CVE-2023-5217)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted HTML content in vp8 encoding in libvpx. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Note, the vulnerability is being actively exploited in the wild.

Remediation

Install update from vendor's website.

References

• https://ubuntu.com/security/notices/USN-6404-1