CVE-2019-11840
CVSS V2 Medium 4.3
CVSS V3 Medium 5.9
Description
An issue was discovered in supplementary Go cryptography libraries, aka golang-googlecode-go-crypto, before 2019-03-20. A flaw was found in the amd64 implementation of golang.org/x/crypto/salsa20 and golang.org/x/crypto/salsa20/salsa. If more than 256 GiB of keystream is generated, or if the counter otherwise grows greater than 32 bits, the amd64 implementation will first generate incorrect output, and then cycle back to previously generated keystream. Repeated keystream bytes can lead to loss of confidentiality in encryption applications, or to predictability in CSPRNG applications.
Overview
- CVE ID
- CVE-2019-11840
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2019-05-09T16:29:00
- Last Modified Date
- 2022-10-07T14:39:21
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:golang:crypto:*:*:*:*:*:*:*:* | 1 | OR | 2019-03-20 | |
| cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | 1 | OR |
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://groups.google.com/forum/#!msg/golang-announce/tjyNcJxb2vQ/n0NRBziSCAAJ | Mailing List Third Party Advisory |
| https://go.googlesource.com/crypto/+/b7391e95e576cacdcdd422573063bc057239113d | Mailing List Patch Third Party Advisory |
| https://github.com/golang/go/issues/30965 | Third Party Advisory |
| https://bugzilla.redhat.com/show_bug.cgi?id=1691529 | Issue Tracking Vendor Advisory |
| https://lists.debian.org/debian-lts-announce/2019/06/msg00029.html | |
| https://lists.debian.org/debian-lts-announce/2020/10/msg00014.html | |
| https://lists.debian.org/debian-lts-announce/2020/11/msg00016.html | |
| https://lists.debian.org/debian-lts-announce/2020/11/msg00030.html | |
| https://lists.debian.org/debian-lts-announce/2021/01/msg00015.html |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-11840 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11840 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:27:03 | Added to TrackCVE | |||
| 2022-12-03 20:30:59 | 2019-05-09T16:29Z | 2019-05-09T16:29:00 | CVE Published Date | updated |
| 2022-12-03 20:30:59 | 2022-10-07T14:39:21 | CVE Modified Date | updated | |
| 2022-12-03 20:30:59 | Analyzed | Vulnerability Status | updated |