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Fencer Intel
medium 5.3

CVE-2018-14622 json

A null-pointer dereference vulnerability was found in libtirpc before version 0.3.3-rc3.

published 8y ago modified 4mo ago also EUVD-2018-6529

cvss
5.3
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
3.9%
EPSS 3.9% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

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.

Patch / fix

  • libtirpc_project libtirpc 0.3.3
  • libtirpc Debian 14, Debian 13, Debian 12 0.2.5-1.3

debian advisories DEBIAN-CVE-2018-14622

  • libtirpc Ubuntu 14.04 LTS 0.2.2-5ubuntu2.1
  • libtirpc Ubuntu 16.04 LTS 0.2.5-1ubuntu0.1
  • libtirpc Ubuntu 18.04 LTS 0.2.5-1.2ubuntu0.1

ubuntu advisories UBUNTU-CVE-2018-14622

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libtirpc RHEL 7 0.2.4-0.10.el7

red hat advisories RHBA-2017:1991

  • libtirpc SLES for SAP 11 SP4, SLES 11 SP4, SLE Software Development Kit 11 SP4 0.2.1-1.13.6.1

suse advisories SUSE-SU-2018:3146-1

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-14622 updated cvss 5.3

libtirpc: Segmentation fault in makefd_xprt return value in svc_vc.c

  • Red Hat Enterprise Linux 6 libtirpc
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Client (v. 7) libtirpc 0.2.4-0.10.el7 Red Hat Enterprise Linux Client Optional (v. 7) libtirpc-devel 0.2.4-0.10.el7, libtirpc-debuginfo 0.2.4-0.10.el7 Red Hat Enterprise Linux ComputeNode (v. 7) libtirpc 0.2.4-0.10.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) libtirpc-devel 0.2.4-0.10.el7, libtirpc-debuginfo 0.2.4-0.10.el7 Red Hat Enterprise Linux Server (v. 7) libtirpc 0.2.4-0.10.el7 Red Hat Enterprise Linux Server Optional (v. 7) libtirpc-devel 0.2.4-0.10.el7, libtirpc-debuginfo 0.2.4-0.10.el7
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 7) libtirpc 0.2.4-0.10.el7 Red Hat Enterprise Linux Workstation Optional (v. 7) libtirpc-devel 0.2.4-0.10.el7, libtirpc-debuginfo 0.2.4-0.10.el7
    fixed: vendor fix RHBA-2017:1991
  • Red Hat Ceph Storage 2 libntirpc Red Hat Ceph Storage 3 libntirpc Red Hat Enterprise Linux 8 libtirpc Red Hat OpenShift Enterprise 3 libtirpc Red Hat Storage 3 libntirpc Red Hat Virtualization 4 libtirpc
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.86% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.0 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

  • [UNKNOWN] libtirpc

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.