Executive Summary

Informations
Name CVE-2019-12312 First vendor Publication 2019-05-24
Vendor Cve Last vendor Modification 2020-08-24

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 7.5
Base Score 7.5 Environmental Score 7.5
impact SubScore 3.6 Temporal Score 7.5
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12312

CWE : Common Weakness Enumeration

% Id Name
50 % CWE-617 Reachable Assertion
50 % CWE-476 NULL Pointer Dereference

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 14

Sources (Detail)

Source Url
CONFIRM https://libreswan.org/security/CVE-2019-12312/CVE-2019-12312.txt
https://libreswan.org/security/CVE-2019-12312/libreswan-3.27-CVE-2019-12312.p...
MISC http://www.iwantacve.cn/index.php/archives/218/
https://github.com/libreswan/libreswan/compare/9b1394e...3897683
https://github.com/libreswan/libreswan/issues/246

Alert History

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Date Informations
2021-05-04 13:23:01
  • Multiple Updates
2021-04-22 02:37:54
  • Multiple Updates
2020-09-03 01:25:08
  • Multiple Updates
2020-05-23 02:22:01
  • Multiple Updates
2019-06-07 00:19:05
  • Multiple Updates
2019-06-06 21:19:42
  • Multiple Updates
2019-05-28 21:19:27
  • Multiple Updates
2019-05-24 21:19:18
  • First insertion