VDB-93946 · CVE-2016-9798 · BID 94652

BlueZ 5.42 Dump File tools/parser/l2cap.c conf_opt use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in BlueZ 5.42. It has been declared as problematic. The affected element is the function conf_opt of the file tools/parser/l2cap.c of the component Dump File Handler. Executing a manipulation can lead to use after free. This vulnerability is handled as CVE-2016-9798. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability has been found in BlueZ 5.42 and classified as problematic. This vulnerability affects the function conf_opt of the file tools/parser/l2cap.c of the component Dump File Handler. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect availability. CVE summarizes:

In BlueZ 5.42, a use-after-free was identified in "conf_opt" function in "tools/parser/l2cap.c" source file. This issue can be triggered by processing a corrupted dump file and will result in hcidump crash.

The bug was discovered 11/14/2016. The weakness was released 12/03/2016 (Website). The advisory is available at securityfocus.com. This vulnerability was named CVE-2016-9798 since 12/03/2016. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 19 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 172414 (SUSE Enterprise Linux Security Update for bluez (SUSE-SU-2019:1339-1)).

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 vulnerability database at SecurityFocus (BID 94652†). Entries connected to this vulnerability are available at VDB-93945, VDB-93947, VDB-93948 and VDB-93949. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/14/2016 🔍
11/14/2016 +0 days 🔍
12/03/2016 +19 days 🔍
12/03/2016 +0 days 🔍
12/03/2016 +0 days 🔍
12/03/2016 +0 days 🔍
06/15/2019 +924 days 🔍

Sourcesinfo

Advisory: securityfocus.com⛔
Status: Confirmed

CVE: CVE-2016-9798 (🔍)
GCVE (CVE): GCVE-0-2016-9798
GCVE (VulDB): GCVE-100-93946
SecurityFocus: 94652 - BlueZ Buffer Overflow and Denial of Service Vulnerabilities

See also: 🔍

Entryinfo

Created: 12/03/2016 19:04
Updated: 06/15/2019 18:28
Changes: 12/03/2016 19:04 (53), 06/15/2019 18:28 (12)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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