CVE-2017-9526
CVSS V2 Medium 4.3
CVSS V3 Medium 5.9
Description
In Libgcrypt before 1.7.7, an attacker who learns the EdDSA session key (from side-channel observation during the signing process) can easily recover the long-term secret key. 1.7.7 makes a cipher/ecc-eddsa.c change to store this session key in secure memory, to ensure that constant-time point operations are used in the MPI library.
Overview
- CVE ID
- CVE-2017-9526
- Assigner
- cve@mitre.org
- Vulnerability Status
- Modified
- Published Version
- 2017-06-11T02:29:00
- Last Modified Date
- 2019-01-16T19:29:23
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:gnupg:libgcrypt:*:*:*:*:*:*:*:* | 1 | OR | 1.7.6 |
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
- 3.0
- Vector String
- CVSS:3.0/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://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=f9494b3f258e01b6af8bd3941ce436bcc00afc56 | Issue Tracking Patch Third Party Advisory |
| https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git;a=commit;h=5a22de904a0a366ae79f03ff1e13a1232a89e26b | Issue Tracking Patch Third Party Advisory |
| https://bugzilla.suse.com/show_bug.cgi?id=1042326 | Issue Tracking Patch |
| http://www.securityfocus.com/bid/99046 | Third Party Advisory VDB Entry |
| http://www.debian.org/security/2017/dsa-3880 | |
| http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html | |
| https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2017-9526 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9526 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 08:00:25 | Added to TrackCVE | |||
| 2022-12-02 17:39:15 | 2017-06-11T02:29Z | 2017-06-11T02:29:00 | CVE Published Date | updated |
| 2022-12-02 17:39:15 | 2019-01-16T19:29:23 | CVE Modified Date | updated | |
| 2022-12-02 17:39:15 | Modified | Vulnerability Status | updated |