BlueZ 5.42 Dump File tools/parser/csr.c commands_dump frm->ptr memory corruption

Summaryinfo

A vulnerability described as critical has been identified in BlueZ 5.42. Affected by this issue is the function commands_dump of the file tools/parser/csr.c of the component Dump File Handler. Executing a manipulation of the argument frm->ptr can lead to memory corruption. This vulnerability is tracked as CVE-2016-9804. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as critical was found in BlueZ 5.42. This vulnerability affects the function commands_dump of the file tools/parser/csr.c of the component Dump File Handler. The manipulation of the argument frm->ptr 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. CVE summarizes:

In BlueZ 5.42, a buffer overflow was observed in "commands_dump" function in "tools/parser/csr.c" source file. The issue exists because "commands" array is overflowed by supplied parameter due to lack of boundary checks on size of the buffer from frame "frm->ptr" parameter. This issue can be triggered by processing a corrupted dump file and will result in hcidump crash.

The weakness was disclosed 12/03/2016 (Website). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2016-9804. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 110661 (SUSE SLED12 / SLES12 Security Update : bluez (SUSE-SU-2018:1778-1) (BlueBorne)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171226 (SUSE Enterprise Linux Security Update for bluez (SUSE-SU-2018:1778-1)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (110661) and SecurityFocus (BID 94652†). The entries VDB-93945, VDB-93946, VDB-93947 and VDB-93948 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

• BlueZ

Version

• 5.42

License

• open-source

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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VulDB is the best source for vulnerability data and more expert information about this specific topic.

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