CVE-2020-10933
CVSS V2 Medium 5
CVSS V3 Medium 5.3
Description
An issue was discovered in Ruby 2.5.x through 2.5.7, 2.6.x through 2.6.5, and 2.7.0. If a victim calls BasicSocket#read_nonblock(requested_size, buffer, exception: false), the method resizes the buffer to fit the requested size, but no data is copied. Thus, the buffer string provides the previous value of the heap. This may expose possibly sensitive data from the interpreter.
Overview
- CVE ID
- CVE-2020-10933
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-05-04T15:15:13
- Last Modified Date
- 2022-05-03T14:21:52
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* | 1 | OR | 2.5.0 | 2.5.7 |
| cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* | 1 | OR | 2.6.0 | 2.6.5 |
| cpe:2.3:a:ruby-lang:ruby:2.7.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | 0 | OR | ||
| AND | ||||
| cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* | 1 | OR | ||
| AND | ||||
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- LOW
- Availability Impact
- NONE
- Base Score
- 5.3
- Base Severity
- MEDIUM
- Exploitability Score
- 3.9
- Impact Score
- 1.4
References
| Reference URL | Reference Tags |
|---|---|
| https://www.ruby-lang.org/en/news/2020/03/31/heap-exposure-in-socket-cve-2020-10933/ | Exploit Vendor Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/F4TNVTT66VPRMX5UZYSDGSVRXKKDDDU5/ | Mailing List Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20200625-0001/ | Third Party Advisory |
| https://www.debian.org/security/2020/dsa-4721 | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-10933 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-10933 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-08 06:19:58 | Added to TrackCVE | |||
| 2022-12-04 16:04:46 | 2020-05-04T15:15Z | 2020-05-04T15:15:13 | CVE Published Date | updated |
| 2022-12-04 16:04:46 | 2022-05-03T14:21:52 | CVE Modified Date | updated | |
| 2022-12-04 16:04:46 | Analyzed | Vulnerability Status | updated |