5G NRLC Remote Denial of Service Vulnerability in MediaTek Products
CVE-2023-20702

7.5HIGH

Key Information:

Vendor

MediaTek
Status
Mt6835, Mt6873, Mt6875, Mt6879, Mt6883, Mt6885, Mt6886, Mt6889, Mt6895, Mt6980, Mt6983, Mt6985, Mt6990, Mt8673, Mt8675, Mt8791, Mt8791t, Mt8797, Mt8798
Vendor
CVE Published:
6 November 2023

What is CVE-2023-20702?

A significant vulnerability exists in MediaTek's 5G NRLC that allows for potential remote denial of service due to inadequate error handling during memory access. This flaw arises when the User Equipment (UE) processes an invalid 1-byte RLC Service Data Unit (SDU). Notably, exploitation of this vulnerability does not require any special execution privileges or user interaction, making it particularly concerning for device stability. Affected users should consider applying the available patches as outlined in the MediaTek product security bulletin.

Affected Version(s)

MT6835, MT6873, MT6875, MT6879, MT6883, MT6885, MT6886, MT6889, MT6895, MT6980, MT6983, MT6985, MT6990, MT8673, MT8675, MT8791, MT8791T, MT8797, MT8798 Modem NR15, NR16, NR17

References

https://corp.mediatek.com/product-security-bulletin/Novem...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.