Vulnerability Details : CVE-2020-28588
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.
Vulnerability category: Information leak
Products affected by CVE-2020-28588
- cpe:2.3:o:linux:linux_kernel:5.4.66:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.9.8:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:5.10:rc4:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-28588
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 21 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-28588
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:P/I:N/A:N |
3.9
|
2.9
|
NIST | |
|
4.0
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
2.5
|
1.4
|
Talos | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2020-28588
-
When converting from one data type to another, such as long to integer, data can be omitted or translated in a way that produces unexpected values. If the resulting values are used in a sensitive context, then dangerous behaviors may occur.Assigned by:
- nvd@nist.gov (Primary)
- talos-cna@cisco.com (Secondary)
References for CVE-2020-28588
-
https://talosintelligence.com/vulnerability_reports/TALOS-2020-1211
TALOS-2020-1211 || Cisco Talos Intelligence Group - Comprehensive Threat IntelligenceExploit;Technical Description;Third Party Advisory
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