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CVE-2018-14622

Published: 30 August 2018

A null-pointer dereference vulnerability was found in libtirpc before version 0.3.3-rc3. The return value of makefd_xprt() was not checked in all instances, which could lead to a crash when the server exhausted the maximum number of available file descriptors. A remote attacker could cause an rpc-based application to crash by flooding it with new connections.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
libtirpc
Launchpad, Ubuntu, Debian
upstream Needs triage

trusty
Released (0.2.2-5ubuntu2.1)
xenial
Released (0.2.5-1ubuntu0.1)
bionic
Released (0.2.5-1.2ubuntu0.1)
Patches:
other: http://git.linux-nfs.org/?p=steved/libtirpc.git;a=commit;h=1c77f7a869bdea2a34799d774460d1f9983d45f0

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H