Linux Kernel up to 4.14.14 i2c-core-smbus.c i2c_smbus_xfer_emulated out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 4.14.14 and classified as critical. Affected by this issue is the function i2c_smbus_xfer_emulated of the file drivers/i2c/i2c-core-smbus.c. Executing a manipulation can lead to out-of-bounds write. The identification of this vulnerability is CVE-2017-18551. The attack can only be executed locally. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 4.14.14 (Operating System). This vulnerability affects the function i2c_smbus_xfer_emulated of the file drivers/i2c/i2c-core-smbus.c. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in drivers/i2c/i2c-core-smbus.c in the Linux kernel before 4.14.15. There is an out of bounds write in the function i2c_smbus_xfer_emulated.

The weakness was shared 08/19/2019 (Website). The advisory is shared for download at lists.opensuse.org. This vulnerability was named CVE-2017-18551 since 08/18/2019. The attack needs to be approached locally. 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 208643 (CentOS 7 : kernel-alt (RHSA-2020:2104)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.14.15 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (208643). The entry VDB-140229 is related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 208643
Nessus Name: CentOS 7 : kernel-alt (RHSA-2020:2104)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.14.15
Patch: git.kernel.org

Timelineinfo

08/18/2019 🔍
08/19/2019 +1 days 🔍
08/19/2019 +0 days 🔍
10/12/2024 +1881 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: K48073202
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-18551 (🔍)
GCVE (CVE): GCVE-0-2017-18551
GCVE (VulDB): GCVE-100-140284
See also: 🔍

Entryinfo

Created: 08/19/2019 08:22
Updated: 10/12/2024 05:18
Changes: 08/19/2019 08:22 (59), 07/30/2020 18:53 (2), 11/26/2023 13:43 (5), 10/12/2024 05:18 (16)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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