CVE-2019-16905
CVSS V2 Medium 4.4
CVSS V3 High 7.8
Description
OpenSSH 7.7 through 7.9 and 8.x before 8.1, when compiled with an experimental key type, has a pre-authentication integer overflow if a client or server is configured to use a crafted XMSS key. This leads to memory corruption and local code execution because of an error in the XMSS key parsing algorithm. NOTE: the XMSS implementation is considered experimental in all released OpenSSH versions, and there is no supported way to enable it when building portable OpenSSH.
Overview
- CVE ID
- CVE-2019-16905
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2019-10-09T20:15:23
- Last Modified Date
- 2023-03-01T01:56:11
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:* | 1 | OR | 7.7 | 7.9 |
| cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:* | 1 | OR | 8.0 | 8.1 |
| cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:* | 1 | OR | ||
| cpe:2.3:a:netapp:steelstore_cloud_integrated_storage:-:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:M/Au:N/C:P/I:P/A:P
- Access Vector
- LOCAL
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 4.4
- Severity
- MEDIUM
- Exploitability Score
- 3.4
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.8
- Base Severity
- HIGH
- Exploitability Score
- 1.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://0day.life/exploits/0day-1009.html | Exploit Third Party Advisory |
| https://bugzilla.suse.com/show_bug.cgi?id=1153537 | Issue Tracking Third Party Advisory |
| https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf | |
| https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshkey-xmss.c | Release Notes Vendor Advisory |
| https://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/sshkey-xmss.c.diff?r1=1.5&r2=1.6&f=h | Patch Vendor Advisory |
| https://security.gentoo.org/glsa/201911-01 | Third Party Advisory |
| https://security.netapp.com/advisory/ntap-20191024-0003/ | Third Party Advisory |
| https://ssd-disclosure.com/archives/4033/ssd-advisory-openssh-pre-auth-xmss-integer-overflow | Exploit Third Party Advisory |
| https://www.openssh.com/releasenotes.html | Release Notes Vendor Advisory |
| https://www.openwall.com/lists/oss-security/2019/10/09/1 | Mailing List Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-16905 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16905 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-04-04 00:39:27 | Added to TrackCVE | |||
| 2022-12-04 04:04:17 | 2019-10-09T20:15Z | 2019-10-09T20:15:23 | CVE Published Date | updated |
| 2022-12-04 04:04:17 | 2022-03-31T18:10:44 | CVE Modified Date | updated | |
| 2022-12-04 04:04:17 | Analyzed | Vulnerability Status | updated | |
| 2022-12-13 13:13:33 | 2022-12-13T12:15:26 | CVE Modified Date | updated | |
| 2022-12-13 13:13:33 | Analyzed | Modified | Vulnerability Status | updated |
| 2022-12-13 13:13:35 | References | updated | ||
| 2022-12-23 18:10:16 | Modified | Undergoing Analysis | Vulnerability Status | updated |
| 2023-03-01 03:10:33 | 2023-03-01T01:56:11 | CVE Modified Date | updated | |
| 2023-03-01 03:10:33 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |