Linux Kernel up to 5.5.7 drivers/vhost/net.c get_raw_socket sk_family out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Linux Kernel up to 5.5.7. This impacts the function get_raw_socket of the file drivers/vhost/net.c. Such manipulation of the argument sk_family as part of System Calls leads to out-of-bounds write. This vulnerability is documented as CVE-2020-10942. The attack needs to be performed locally. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.5.7 (Operating System). It has been rated as critical. Affected by this issue is the function get_raw_socket of the file drivers/vhost/net.c. The manipulation of the argument sk_family as part of a System Calls 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 5.5.8, get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls.

The weakness was released 03/24/2020. This vulnerability is handled as CVE-2020-10942 since 03/24/2020. The attack needs to be approached locally. No form of authentication is required for exploitation. There are known technical details, but no exploit is available.

Upgrading to version 5.5.8 eliminates this vulnerability.

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Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.5.8

Timelineinfo

03/24/2020 🔍
03/24/2020 +0 days 🔍
03/25/2020 +1 days 🔍
05/11/2024 +1508 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-4342-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-10942 (🔍)
GCVE (CVE): GCVE-0-2020-10942
GCVE (VulDB): GCVE-100-152216

Entryinfo

Created: 03/25/2020 10:56
Updated: 05/11/2024 09:19
Changes: 03/25/2020 10:56 (41), 03/25/2020 11:01 (18), 10/04/2020 08:22 (1), 05/11/2024 09:19 (19)
Complete: 🔍
Cache ID: 216::103

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