CVE-2019-20172
CVSS V2 Medium 4.6
CVSS V3 High 7.8
Description
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.
Overview
- CVE ID
- CVE-2019-20172
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2019-12-31T03:15:10
- Last Modified Date
- 2022-12-08T18:55:41
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:serenityos:serenity:*:*:*:*:*:*:*:* | 1 | OR | 2019-12-30 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 4.6
- Severity
- MEDIUM
- Exploitability Score
- 3.9
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.8
- Base Severity
- HIGH
- Exploitability Score
- 1.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/Fire30/CTF-WRITEUPS/tree/master/36c3_ctf/wisdom | Exploit Third Party Advisory |
| https://github.com/SerenityOS/serenity/commit/0fc24fe2564736689859e7edfa177a86dac36bf9 | Patch Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-20172 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20172 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:36:39 | Added to TrackCVE | |||
| 2022-12-04 08:49:26 | 2019-12-31T03:15Z | 2019-12-31T03:15:10 | CVE Published Date | updated |
| 2022-12-04 08:49:26 | 2020-08-24T17:37:01 | CVE Modified Date | updated | |
| 2022-12-04 08:49:26 | Analyzed | Vulnerability Status | updated | |
| 2022-12-08 19:09:54 | 2022-12-08T18:55:41 | CVE Modified Date | updated |