CVE-2020-28588
CVSS V2 Low 2.1
CVSS V3 Medium 5.5
Description
An information disclosure vulnerability exists in the /proc/pid/syscall functionality of Linux Kernel 5.1 Stable and 5.4.66. More specifically, this issue has been introduced in v5.1-rc4 (commit 631b7abacd02b88f4b0795c08b54ad4fc3e7c7c0) and is still present in v5.10-rc4, so it’s likely that all versions in between are affected. An attacker can read /proc/pid/syscall to trigger this vulnerability, which leads to the kernel leaking memory contents.
Overview
- CVE ID
- CVE-2020-28588
- Assigner
- talos-cna@cisco.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-05-10T19:15:08
- Last Modified Date
- 2022-06-07T18:39:03
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:5.4.66:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:linux:linux_kernel:5.9.8:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:linux:linux_kernel:5.10:rc4:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 2.1
- Severity
- LOW
- Exploitability Score
- 3.9
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 5.5
- Base Severity
- MEDIUM
- Exploitability Score
- 1.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://talosintelligence.com/vulnerability_reports/TALOS-2020-1211 | Exploit Technical Description Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-28588 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28588 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-04-20 17:02:08 | Added to TrackCVE | |||
| 2022-12-05 01:56:01 | 2021-05-10T19:15Z | 2021-05-10T19:15:08 | CVE Published Date | updated |
| 2022-12-05 01:56:01 | 2022-06-07T18:39:03 | CVE Modified Date | updated | |
| 2022-12-05 01:56:01 | Analyzed | Vulnerability Status | updated |