CVE-2022-26471

In telephony, there is a possible escalation of privilege due to a parcel format mismatch. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07319121; Issue ID: ALPS07319121.

Weakness

The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.

Affected Software

Potential Mitigations

• Make fields transient to protect them from deserialization.
• An attempt to serialize and then deserialize a class containing transient fields will result in NULLs where the transient data should be. This is an excellent way to prevent time, environment-based, or sensitive variables from being carried over and used improperly.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/586.html

References

• https://corp.mediatek.com/product-security-bulletin/October-2022
• https://corp.mediatek.com/product-security-bulletin/October-2022