Linux Kernel up to 5.4.11 Keycode Table drivers/input/input.c input_set_keycode out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 5.4.11. This affects the function input_set_keycode of the file drivers/input/input.c of the component Keycode Table Handler. Such manipulation leads to out-of-bounds write. This vulnerability is traded as CVE-2019-20636. The attack may be launched remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.4.11 (Operating System) and classified as critical. Affected by this issue is the function input_set_keycode of the file drivers/input/input.c of the component Keycode Table Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel before 5.4.12, drivers/input/input.c has out-of-bounds writes via a crafted keycode table, as demonstrated by input_set_keycode, aka CID-cb222aed03d7.

The weakness was shared 04/08/2020. This vulnerability is handled as CVE-2019-20636 since 04/08/2020. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

Upgrading to version 5.4.12 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.4.12
Patch: git.kernel.org

Timelineinfo

04/08/2020 🔍
04/08/2020 +0 days 🔍
04/09/2020 +1 days 🔍
05/17/2024 +1499 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: cb222aed03d798fc074be55e59d9a112338ee784
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-20636 (🔍)
GCVE (CVE): GCVE-0-2019-20636
GCVE (VulDB): GCVE-100-152924

Entryinfo

Created: 04/09/2020 09:28
Updated: 05/17/2024 14:51
Changes: 04/09/2020 09:28 (40), 04/09/2020 09:33 (18), 10/09/2020 08:03 (1), 05/17/2024 14:47 (20), 05/17/2024 14:51 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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