Linux Kernel up to 5.6.2 drivers/net/can/slcan.c slc_bump information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 5.6.2. It has been classified as problematic. This issue affects the function slc_bump of the file drivers/net/can/slcan.c. The manipulation leads to information disclosure. This vulnerability is uniquely identified as CVE-2020-11494. Local access is required to approach this attack. No exploit exists.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.6.2 (Operating System) and classified as problematic. This issue affects the function slc_bump of the file drivers/net/can/slcan.c. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. The summary by CVE is:

An issue was discovered in slc_bump in drivers/net/can/slcan.c in the Linux kernel through 5.6.2. It allows attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL, aka CID-b9258a2cece4.

The weakness was disclosed 04/02/2020. The identification of this vulnerability is CVE-2020-11494 since 04/02/2020. An attack has to be approached locally. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

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

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.3
VulDB Temp Score: 3.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

04/02/2020 🔍
04/02/2020 +0 days 🔍
04/03/2020 +1 days 🔍
05/13/2024 +1501 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: 159565
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-11494 (🔍)
GCVE (CVE): GCVE-0-2020-11494
GCVE (VulDB): GCVE-100-152717

Entryinfo

Created: 04/03/2020 10:12
Updated: 05/13/2024 13:50
Changes: 04/03/2020 10:12 (37), 04/03/2020 10:17 (18), 10/07/2020 10:49 (1), 05/13/2024 13:45 (19), 05/13/2024 13:50 (1)
Complete: 🔍
Cache ID: 216::103

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