VDB-136834 · CVE-2019-12937 · GCVE-0-2019-12937

ToaruOS up to 1.10.9 gsudo apps/gsudo.c DISPLAY memory corruption

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.5	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in ToaruOS up to 1.10.9. Impacted is an unknown function of the file apps/gsudo.c of the component gsudo. Executing a manipulation of the argument DISPLAY as part of Environment Variable can lead to memory corruption. The identification of this vulnerability is CVE-2019-12937. The attack can only be executed locally. There is no exploit available.

Detailsinfo

A vulnerability was found in ToaruOS up to 1.10.9. It has been declared as critical. This vulnerability affects an unknown code block of the file apps/gsudo.c of the component gsudo. The manipulation of the argument DISPLAY as part of a Environment Variable leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

apps/gsudo.c in gsudo in ToaruOS through 1.10.9 has a buffer overflow allowing local privilege escalation to the root user via the DISPLAY environment variable.

The weakness was shared 06/23/2019. This vulnerability was named CVE-2019-12937 since 06/23/2019. Local access is required to approach this attack. The requirement for exploitation is a single authentication. 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.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

ToaruOS

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

06/23/2019 🔍
06/23/2019 +0 days 🔍
06/24/2019 +1 days 🔍
10/07/2023 +1566 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2019-12937 (🔍)
GCVE (CVE): GCVE-0-2019-12937
GCVE (VulDB): GCVE-100-136834

Entryinfo

Created: 06/24/2019 07:16
Updated: 10/07/2023 14:43
Changes: 06/24/2019 07:16 (37), 06/27/2020 12:20 (17), 10/07/2023 14:43 (3)
Complete: 🔍
Cache ID: 216::103