CVE-2023-20768
Description
In ion, there is a possible out of bounds read due to type confusion. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS07560720; Issue ID: ALPS07559800.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
In MediaTek ion driver, type confusion causes out-of-bounds read, enabling local privilege escalation with System privileges.
Vulnerability
In the ion memory allocator driver of multiple MediaTek chipsets, a type confusion vulnerability exists, leading to an out-of-bounds read. The affected chipsets include MT6580, MT6731, MT6735, and others as listed in the MediaTek July 2023 Product Security Bulletin [1]. The bug is reachable when an attacker holds System execution privileges. No user interaction is required for exploitation.
Exploitation
An attacker with System execution privileges can trigger the type confusion by sending specially crafted commands to the ion driver. This results in an out-of-bounds read condition. The exploitation does not require user interaction.
Impact
Successful exploitation allows the attacker to read out-of-bounds memory, potentially leading to information disclosure. While the immediate impact is an out-of-bounds read, this may be leveraged for further privilege escalation or to bypass security mechanisms within the System context.
Mitigation
MediaTek has released a patch identified as ALPS07560720 addressing this issue. The patch is included in the July 2023 Product Security Bulletin [1]. Device OEMs have been notified and are expected to deploy the fix in firmware updates. No workaround is available; updating to the patched version is recommended.
AI Insight generated on May 25, 2026. Synthesized from this CVE's description and the cited reference URLs; citations are validated against the source bundle.
Affected products
2- MediaTek, Inc./MT6580, MT6735, MT6737, MT6739, MT6753, MT6757, MT6757C, MT6757CD, MT6757CH, MT6761, MT6762, MT6763, MT6765, MT6768, MT6769, MT6771, MT6779, MT6781, MT6785, MT6833, MT6853, MT6853T, MT6873, MT6875, MT6877, MT6883, MT6885, MT6889, MT6891, MT6893, MT8168, MT8195, MT8321, MT8666, MT8675, MT8765, MT8766, MT8768, MT8786, MT8788, MT8791T, MT8797v5Range: Android 11.0, 12.0
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1News mentions
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