CVE-2021-45486
CVSS V2 Low 2.7
CVSS V3 Low 3.5
Description
In the IPv4 implementation in the Linux kernel before 5.12.4, net/ipv4/route.c has an information leak because the hash table is very small.
Overview
- CVE ID
- CVE-2021-45486
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-12-25T02:15:06
- Last Modified Date
- 2023-02-24T14:45:06
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 1 | OR | 5.12.4 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:A/AC:L/Au:S/C:P/I:N/A:N
- Access Vector
- ADJACENT_NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 2.7
- Severity
- LOW
- Exploitability Score
- 5.1
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
- Attack Vector
- ADJACENT_NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- LOW
- Availability Impact
- NONE
- Base Score
- 3.5
- Base Severity
- LOW
- Exploitability Score
- 2.1
- Impact Score
- 1.4
References
| Reference URL | Reference Tags |
|---|---|
| https://arxiv.org/pdf/2112.09604.pdf | Technical Description Third Party Advisory |
| https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.4 | Release Notes Vendor Advisory |
| https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/net/ipv4/route.c?id=aa6dd211e4b1dde9d5dc25d699d35f789ae7eeba | Patch Vendor Advisory |
| https://www.oracle.com/security-alerts/cpujul2022.html |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-45486 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-45486 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:34:16 | Added to TrackCVE | |||
| 2022-12-06 04:50:08 | 2021-12-25T02:15Z | 2021-12-25T02:15:06 | CVE Published Date | updated |
| 2022-12-06 04:50:08 | 2022-07-25T18:18:26 | CVE Modified Date | updated | |
| 2022-12-06 04:50:08 | Modified | Vulnerability Status | updated | |
| 2022-12-06 04:50:13 | References | updated | ||
| 2022-12-30 15:12:50 | Modified | Undergoing Analysis | Vulnerability Status | updated |
| 2023-02-24 15:11:59 | 2023-02-24T14:45:06 | CVE Modified Date | updated | |
| 2023-02-24 15:11:59 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |