SB2018061701 - Debian update for strongswan 

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Main Vulnerability Database SB2018061701

SB2018061701 - Debian update for strongswan

Published: June 17, 2018

Security Bulletin ID SB2018061701
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Buffer underflow (CVE-ID: CVE-2018-5388)

The vulnerability allows a local attacker to cause DoS condition on the target system.

The vulnerability exists due to buffer underflow stroke_socket.c while improper checking of packet length. A local attacker can submit specially crafted packets, trigger resource exhaustion and cause the service to crash while reading from the socket.


2) Memory corruption (CVE-ID: CVE-2018-10811)

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists in the Internet Key Exchange Version 2 (IKEv2) key derivation of strongSwan due to insufficient initialization of the variable that stores the SKEYSEED for IKEv2 key derivation before using the negotiated pseudorandom function (PRF). A remote attacker can trigger a key derivation failure and cause the affected software to clear the uninitialized memory that may lead to crash.


Remediation

Install update from vendor's website.

References