SB2023042735 - Multiple vulnerabilities in Google ChromeOS LTS

Description

This security bulletin contains information about 9 secuirty vulnerabilities.

1) Out-of-bounds read (CVE-ID: CVE-2023-1532)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the GPU Video component in Google Chrome. A remote attacker can trick the victim into visiting a specially crafted web page, trigger an out-of-bounds read error and gain access to sensitive information.

2) Type Confusion (CVE-ID: CVE-2023-1215)

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

The vulnerability exists due to a type confusion error within the CSS component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger a type confusion error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

3) Use-after-free (CVE-ID: CVE-2023-1811)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error within the Frames component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.

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

4) Integer overflow (CVE-ID: CVE-2023-2136)

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

The vulnerability exists due to integer overflow in Skia component in Google Chrome. A remote attacker can trick the victim to open a specially crafted web page, 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.

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

5) Type Confusion (CVE-ID: CVE-2023-2033)

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

The vulnerability exists due to a type confusion error within the V8 engine in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger a type confusion error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

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

6) Use-after-free (CVE-ID: CVE-2023-0266)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the snd_ctl_elem_read() function in the Linux kernel sound subsystem. A local user can trigger a use-after-free error and execute arbitrary code on the system.

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

7) Improper Initialization (CVE-ID: CVE-2022-2196)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper initialization within nVMX in Linux kernel. A local user can perform speculative execution attacks and escalate privileges on the system.

8) Memory leak (CVE-ID: CVE-2023-26083)

The vulnerability allows a local application to gain access to sensitive information.

The vulnerability exists due memory leak. A local application can force the driver to leak memory and gain access to sensitive information.

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

9) Use-after-free (CVE-ID: CVE-2023-1281)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error in Linux kernel traffic control index filter (tcindex) when the tcf_exts_exec() function is called with the destroyed tcf_ext. A local user attacker can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Remediation

Install update from vendor's website.

References

• https://chromereleases.googleblog.com/2023/04/long-term-support-channel-update-for_27.html