Linux Kernel up to 5.3.13 vcsu Device vc_screen.c vcs_write out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.8$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 5.3.13. This issue affects the function vcs_write of the file drivers/tty/vt/vc_screen.c of the component vcsu Device Handler. Performing a manipulation results in out-of-bounds. This vulnerability is identified as CVE-2019-19252. The attack is only possible with local access. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 5.3.13 (Operating System). This affects the function vcs_write of the file drivers/tty/vt/vc_screen.c of the component vcsu Device Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

vcs_write in drivers/tty/vt/vc_screen.c in the Linux kernel through 5.3.13 does not prevent write access to vcsu devices.

The weakness was released 11/25/2019. This vulnerability is uniquely identified as CVE-2019-19252 since 11/25/2019. The exploitability is told to be easy. Attacking locally is a requirement. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/27/2024).

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

Entry connected to this vulnerability is available at VDB-146267. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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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: 7.8
VulDB Meta Temp Score: 7.8

VulDB Base Score: 7.8
VulDB Temp Score: 7.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
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
CWE: CWE-125 / 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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: git.kernel.org

Timelineinfo

11/25/2019 🔍
11/25/2019 +0 days 🔍
11/26/2019 +1 days 🔍
02/27/2024 +1554 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: USN-4258-1
Status: Not defined

CVE: CVE-2019-19252 (🔍)
GCVE (CVE): GCVE-0-2019-19252
GCVE (VulDB): GCVE-100-146271
See also: 🔍

Entryinfo

Created: 11/26/2019 08:36
Updated: 02/27/2024 14:18
Changes: 11/26/2019 08:36 (39), 11/26/2019 08:41 (18), 02/27/2024 14:18 (5)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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