Linux Kernel spk_ttyio_receive_buf2 spk_ttyio_synth null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel. It has been declared as problematic. The impacted element is the function spk_ttyio_receive_buf2. Executing a manipulation of the argument spk_ttyio_synth can lead to null pointer dereference. This vulnerability is handled as CVE-2020-27830. There is not any exploit available.

Detailsinfo

A vulnerability classified as problematic was found in Linux Kernel (Operating System) (version now known). This vulnerability affects the function spk_ttyio_receive_buf2. The manipulation of the argument spk_ttyio_synth with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability.

The weakness was released 05/13/2021. The advisory is available at debian.org. This vulnerability was named CVE-2020-27830. Technical details are known, but there is no available exploit.

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

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Productinfo

Type

Vendor

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License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/27/2020 🔍
05/13/2021 +197 days 🔍
05/13/2021 +0 days 🔍
05/16/2021 +3 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: debian.org
Status: Not defined

CVE: CVE-2020-27830 (🔍)
GCVE (CVE): GCVE-0-2020-27830
GCVE (VulDB): GCVE-100-175006

Entryinfo

Created: 05/13/2021 19:14
Updated: 05/16/2021 06:58
Changes: 05/13/2021 19:14 (38), 05/16/2021 06:58 (2)
Complete: 🔍
Cache ID: 216::103

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