Google Android Linux Kernel htt_t2h_msg_handler_fast memory corruption

Summaryinfo

A vulnerability classified as critical has been found in Google Android. This issue affects the function htt_t2h_msg_handler_fast of the component Linux Kernel. This manipulation causes memory corruption. This vulnerability appears as CVE-2018-5893. The attack requires local access. There is no available exploit. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Google Android (Smartphone Operating System) (version now known). It has been declared as critical. Affected by this vulnerability is the function htt_t2h_msg_handler_fast of the component Linux Kernel. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

While processing a message from firmware in htt_t2h_msg_handler_fast() in Android releases from CAF using the linux kernel (Android for MSM, Firefox OS for MSM, QRD Android) before security patch level 2018-06-05, a buffer overwrite can occur.

The bug was discovered 06/05/2018. The weakness was presented 07/06/2018 (Website). The advisory is shared at source.android.com. This vulnerability is known as CVE-2018-5893 since 01/19/2018. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/05/2023). It is expected to see the exploit prices for this product increasing in the near future.

The vulnerability was handled as a non-public zero-day exploit for at least 31 days. During that time the estimated underground price was around $5k-$25k.

Applying a patch is able to eliminate this problem.

See VDB-120500, VDB-120498, VDB-120499 and VDB-120502 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Smartphone Operating System

Vendor

• Google

Name

• Android

License

• free

Website

• Vendor: https://www.google.com/

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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