CVE-2020-16150
CVSS V2 Low 2.1
CVSS V3 Medium 5.5
Description
A Lucky 13 timing side channel in mbedtls_ssl_decrypt_buf in library/ssl_msg.c in Trusted Firmware Mbed TLS through 2.23.0 allows an attacker to recover secret key information. This affects CBC mode because of a computed time difference based on a padding length.
Overview
- CVE ID
- CVE-2020-16150
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-09-02T16:15:12
- Last Modified Date
- 2023-02-27T18:03:33
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:* | 1 | OR | 2.7.17 | |
| cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:* | 1 | OR | 2.8.0 | 2.16.8 |
| cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:* | 1 | OR | 2.17.0 | 2.24.0 |
| cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | 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://lists.debian.org/debian-lts-announce/2022/12/msg00036.html | |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5OSOFUD6UTGTDDSQRS62BPXDU52I6PUA/ | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IRPBHCQKZXHVKOP5O5EWE7P76AWGUXQJ/ | Mailing List Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OD3NM6GD73CTFFRBKG5G2ACXGG7QQHCC/ | Mailing List Third Party Advisory |
| https://tls.mbed.org/tech-updates/security-advisories | Vendor Advisory |
| https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-09-1 | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-16150 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-16150 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:20:58 | Added to TrackCVE | |||
| 2022-12-04 21:55:31 | 2020-09-02T16:15Z | 2020-09-02T16:15:12 | CVE Published Date | updated |
| 2022-12-04 21:55:31 | 2022-11-16T15:08:44 | CVE Modified Date | updated | |
| 2022-12-04 21:55:31 | Analyzed | Vulnerability Status | updated | |
| 2022-12-26 04:11:54 | 2022-12-26T03:15:10 | CVE Modified Date | updated | |
| 2022-12-26 04:11:54 | Analyzed | Modified | Vulnerability Status | updated |
| 2022-12-26 04:11:55 | References | updated | ||
| 2022-12-27 01:11:19 | 2022-12-27T00:15:12 | CVE Modified Date | updated | |
| 2022-12-28 12:10:32 | Modified | Undergoing Analysis | Vulnerability Status | updated |
| 2023-02-27 18:10:11 | 2023-02-27T18:03:33 | CVE Modified Date | updated | |
| 2023-02-27 18:10:11 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |