CVE-2019-13629
CVSS V2 Medium 4.3
CVSS V3 Medium 5.9
Description
MatrixSSL 4.2.1 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or a remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because crypto/pubkey/ecc_math.c scalar multiplication leaks the bit length of the scalar.
Overview
- CVE ID
- CVE-2019-13629
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2019-10-03T14:15:11
- Last Modified Date
- 2021-07-21T11:39:23
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:matrixssl:matrixssl:*:*:*:*:*:*:*:* | 1 | OR | 4.2.1 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 5.9
- Base Severity
- MEDIUM
- Exploitability Score
- 2.2
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://tches.iacr.org/index.php/TCHES/article/view/7337 | Not Applicable |
| http://www.openwall.com/lists/oss-security/2019/10/02/2 | Mailing List Third Party Advisory |
| https://minerva.crocs.fi.muni.cz/ | Product |
| https://eprint.iacr.org/2011/232.pdf | Not Applicable |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-13629 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-13629 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:09:24 | Added to TrackCVE | |||
| 2022-12-04 03:44:54 | 2019-10-03T14:15Z | 2019-10-03T14:15:11 | CVE Published Date | updated |
| 2022-12-04 03:44:54 | 2021-07-21T11:39:23 | CVE Modified Date | updated | |
| 2022-12-04 03:44:54 | Analyzed | Vulnerability Status | updated |