SerenityOS Syscall MemoryManager.cpp privileges management

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in SerenityOS. Affected by this vulnerability is an unknown functionality of the file Kernel/VM/MemoryManager.cpp of the component Syscall Handler. Performing a manipulation results in privileges management. This vulnerability is cataloged as CVE-2019-20172. The attack must be initiated from a local position. There is no exploit available. It is advisable to upgrade the affected component. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Detailsinfo

A vulnerability was found in SerenityOS (affected version unknown). It has been classified as critical. This affects an unknown functionality of the file Kernel/VM/MemoryManager.cpp of the component Syscall Handler. The manipulation with an unknown input leads to a privileges management vulnerability. CWE is classifying the issue as CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Kernel/VM/MemoryManager.cpp in SerenityOS before 2019-12-30 does not reject syscalls with pointers into the kernel-only virtual address space, which allows local users to gain privileges by overwriting a return address that was found on the kernel stack.

The weakness was shared 12/31/2019. This vulnerability is uniquely identified as CVE-2019-20172 since 12/31/2019. Attacking locally is a requirement. The successful exploitation needs a authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / 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: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: github.com

Timelineinfo

12/30/2019 🔍
12/31/2019 +1 days 🔍
12/31/2019 +0 days 🔍
12/31/2019 +0 days 🔍
03/18/2024 +1539 days 🔍

Sourcesinfo

Advisory: 0fc24fe2564736689859e7edfa177a86dac36bf9
Status: Not defined

CVE: CVE-2019-20172 (🔍)
GCVE (CVE): GCVE-0-2019-20172
GCVE (VulDB): GCVE-100-147939

Entryinfo

Created: 12/31/2019 10:41 AM
Updated: 03/18/2024 05:44 PM
Changes: 12/31/2019 10:41 AM (36), 12/31/2019 10:46 AM (17), 03/18/2024 05:44 PM (20)
Complete: 🔍
Cache ID: 244:E33:40

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