Upstream information

CVE-2019-12312 at MITRE

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.

SUSE information

Overall state of this security issue: Pending

This issue is currently rated as having moderate severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 5
Vector AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 7.5 4.3
Vector AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Access Vector Network Network
Access Complexity Low Low
Privileges Required None Low
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High Low
SUSE Bugzilla entry: 1146876 [RESOLVED / INVALID]

No SUSE Security Announcements cross referenced.


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Business Critical Linux 12 SP3 strongswan Not affected
SUSE Linux Enterprise Desktop 12 SP4 strongswan Not affected
SUSE Linux Enterprise High Performance Computing 12 strongswan Not affected
SUSE Linux Enterprise Module for Basesystem 15 GA strongswan Not affected
SUSE Linux Enterprise Module for Basesystem 15 SP1 strongswan Not affected
SUSE Linux Enterprise Server 11 SP4 LTSS strongswan Not affected
SUSE Linux Enterprise Server 12 SP1 LTSS strongswan Not affected
SUSE Linux Enterprise Server 12 SP2 LTSS strongswan Not affected
SUSE Linux Enterprise Server 12 SP3 LTSS strongswan Not affected
SUSE Linux Enterprise Server 12 SP4 strongswan Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP2 strongswan Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP3 strongswan Not affected
SUSE Linux Enterprise Server for SAP Applications 12 SP4 strongswan Not affected