#VU66962 Use-after-free in MediaTek products - CVE-2022-26453
Vulnerability identifier: #VU66962
Vulnerability risk: Low
CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID:
CWE-ID:
CWE-416
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
MT6761
Mobile applications /
Mobile firmware & hardware
MT6765
Mobile applications /
Mobile firmware & hardware
MT6768
Mobile applications /
Mobile firmware & hardware
MT6771
Mobile applications /
Mobile firmware & hardware
MT6833
Mobile applications /
Mobile firmware & hardware
MT6879
Mobile applications /
Mobile firmware & hardware
MT6895
Mobile applications /
Mobile firmware & hardware
MT6983
Mobile applications /
Mobile firmware & hardware
MT6779
Hardware solutions /
Firmware
MT6781
Hardware solutions /
Firmware
MT6785
Hardware solutions /
Firmware
MT6853
Hardware solutions /
Firmware
MT6875
Hardware solutions /
Firmware
MT6877
Hardware solutions /
Firmware
MT6885
Hardware solutions /
Firmware
MT6893
Hardware solutions /
Firmware
Vendor: MediaTek
Description
The vulnerability allows a local user to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in teei. A local user can gain elevated privileges on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
MT6761: All versions
MT6765: All versions
MT6768: All versions
MT6771: All versions
MT6779: All versions
MT6781: All versions
MT6785: All versions
MT6833: All versions
MT6853: All versions
MT6875: All versions
MT6877: All versions
MT6879: All versions
MT6885: All versions
MT6893: All versions
MT6895: All versions
MT6983: All versions
External links
https://corp.mediatek.com/product-security-bulletin/September-2022
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
