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Vulnerability record · CVE-2018-14622 · published 30 August 2018

CVE-2018-14622: Libtirpc project libtirpc unchecked return value vulnerability

LLibtirpc Project · Libtirpc

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.

7.5 CVSS 3.1 High EPSS 3.9% · top 10.2% CWE-252 · Unchecked return value
7.5CVSS 3.1 base score, v2 5.0
3.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
8Affected product versions listed by NVD
14References
17 Jun 2026Last modified by NVD

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.

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

Affected products

8 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://git.linux-nfs.org/?p=steved/libtirpc.git%3Ba=commit%3Bh=1c77f7a869bdea2a34799d774460d1f9983d45f0
https://access.redhat.com/errata/RHBA-2017:1991 Third Party Advisory
https://bugzilla.novell.com/show_bug.cgi?id=968175 Issue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14622 Issue TrackingThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/08/msg00034.html Mailing ListThird Party Advisory
https://usn.ubuntu.com/3759-1/ Third Party Advisory
https://usn.ubuntu.com/3759-2/ Third Party Advisory
http://git.linux-nfs.org/?p=steved/libtirpc.git%3Ba=commit%3Bh=1c77f7a869bdea2a34799d774460d1f9983d45f0
https://access.redhat.com/errata/RHBA-2017:1991 Third Party Advisory
https://bugzilla.novell.com/show_bug.cgi?id=968175 Issue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14622 Issue TrackingThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/08/msg00034.html Mailing ListThird Party Advisory
https://usn.ubuntu.com/3759-1/ Third Party Advisory
https://usn.ubuntu.com/3759-2/ Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-14622), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.