CVE-2021-3759
CVSS V2 None
CVSS V3 Medium 5.5
Description
A memory overflow vulnerability was found in the Linux kernel’s ipc functionality of the memcg subsystem, in the way a user calls the semget function multiple times, creating semaphores. This flaw allows a local user to starve the resources, causing a denial of service. The highest threat from this vulnerability is to system availability.
Overview
- CVE ID
- CVE-2021-3759
- Assigner
- secalert@redhat.com
- Vulnerability Status
- Analyzed
- Published Version
- 2022-08-23T16:15:09
- Last Modified Date
- 2023-03-01T01:23:50
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 5.5
- Base Severity
- MEDIUM
- Exploitability Score
- 1.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2021-3759 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1999675 | Issue Tracking Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html | |
| https://lore.kernel.org/linux-mm/1626333284-1404-1-git-send-email-nglaive@gmail.com/ | Exploit Mailing List Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-3759 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3759 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-08-23 17:00:11 | Added to TrackCVE | |||
| 2022-12-22 17:14:40 | 2022-12-22T16:15:26 | CVE Modified Date | updated | |
| 2022-12-22 17:14:40 | Analyzed | Modified | Vulnerability Status | updated |
| 2022-12-22 17:14:40 | References | updated | ||
| 2022-12-22 20:14:40 | Modified | Undergoing Analysis | Vulnerability Status | updated |
| 2023-03-01 03:15:52 | 2023-03-01T01:23:50 | CVE Modified Date | updated | |
| 2023-03-01 03:15:52 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |