CVE-2019-12312
CVSS V2 Medium 5
CVSS V3 High 7.5
Description
In Libreswan 3.27 an assertion failure can lead to a pluto IKE daemon restart. An attacker can trigger a NULL pointer dereference by initiating an IKEv2 IKE_SA_INIT exchange, followed by a bogus INFORMATIONAL exchange instead of the normallly expected IKE_AUTH exchange. This affects send_v2N_spi_response_from_state() in programs/pluto/ikev2_send.c that will then trigger a NULL pointer dereference leading to a restart of libreswan.
Overview
- CVE ID
- CVE-2019-12312
- Assigner
- cve@mitre.org
- Vulnerability Status
- Modified
- Published Version
- 2019-05-24T14:29:00
- Last Modified Date
- 2020-08-24T17:37:01
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:libreswan:libreswan:*:*:*:*:*:*:*:* | 1 | OR | 3.28 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 5
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/libreswan/libreswan/issues/246 | Third Party Advisory |
| https://github.com/libreswan/libreswan/compare/9b1394e...3897683 | Patch Third Party Advisory |
| http://www.iwantacve.cn/index.php/archives/218/ | Exploit Third Party Advisory |
| https://libreswan.org/security/CVE-2019-12312/libreswan-3.27-CVE-2019-12312.patch | |
| https://libreswan.org/security/CVE-2019-12312/CVE-2019-12312.txt |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-12312 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12312 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:33:49 | Added to TrackCVE | |||
| 2022-12-03 21:14:28 | 2019-05-24T14:29Z | 2019-05-24T14:29:00 | CVE Published Date | updated |
| 2022-12-03 21:14:28 | 2020-08-24T17:37:01 | CVE Modified Date | updated | |
| 2022-12-03 21:14:29 | Modified | Vulnerability Status | updated |