CVE-2018-14622

HIGH

libtirpc <0.3.3-rc3 - Use After Free

Title source: llm

Description

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.

References (7)

[Various Sources] http://git.linux-nfs.org/?p=steved/libtirpc.git%3Ba=commit%3Bh=1c77f7a869bdea2a34799d774460d1f9983d45f0

[Third Party Advisory] https://access.redhat.com/errata/RHBA-2017:1991

[Issue Tracking, Third Party Advisory] https://bugzilla.novell.com/show_bug.cgi?id=968175

[Issue Tracking, Third Party Advisory] https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14622

[Mailing List, Third Party Advisory] https://lists.debian.org/debian-lts-announce/2018/08/msg00034.html

[Third Party Advisory] https://usn.ubuntu.com/3759-1/

[Third Party Advisory] https://usn.ubuntu.com/3759-2/

Scores

CVSS v3 7.5

EPSS 0.0234

EPSS Percentile 84.6%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

CWE

CWE-252

Status published

Affected Products (12)

libtirpc_project/libtirpc < 0.3.3

canonical/ubuntu_linux

canonical/ubuntu_linux

canonical/ubuntu_linux

debian/debian_linux

redhat/enterprise_linux

redhat/enterprise_linux_desktop

redhat/enterprise_linux_server_aus

redhat/enterprise_linux_server_eus

redhat/enterprise_linux_server_eus

redhat/enterprise_linux_server_eus

redhat/enterprise_linux_workstation

Timeline

Published Aug 30, 2018

Tracked Since Feb 18, 2026