CVE-2018-14621

An infinite loop vulnerability was found in libtirpc before version 1.0.2-rc2. With the port to...

5.3 Medium

An infinite loop vulnerability was found in libtirpc before version 1.0.2-rc2. With the port to using poll rather than select, exhaustion of file descriptors would cause the server to enter an infinite loop, consuming a large amount of CPU time and denying service to other clients until restarted.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: Low

Exploit likelihood

2.26%Up 1.4 points since Apr 14, 2021

What each source reports

CVE List Score used 5.3

Record: CVE-2018-14621
CVSS 3.0: 5.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness: CWE-835
Updated: 2026-11-02

EUVDEUVD-2018-6528 5.3

Record: EUVD-2018-6528
CVSS 3.0: 5.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Updated: 2026-11-03

GitHub AdvisoriesGHSA-362j-4wp6-47gj 7.5

An infinite loop vulnerability was found in libtirpc before version 1.0.2-rc2. With the port to...

Record: GHSA-362j-4wp6-47gj
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-835
Updated: 2026-11-02

NVD 5.3

Record: CVE-2018-14621
CVSS 3.0: 5.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 7.8 HighAV:N/AC:L/Au:N/C:N/I:N/A:C
Weakness: CWE-835
Updated: 2026-11-02

OSVBELL-CVE-2018-14621 7.5

CVE-2018-14621 does not affect BellSoft software

Record: BELL-CVE-2018-14621
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVSUSE-SU-2018:3146-1 No score

Security update for libtirpc

This update for libtirpc fixes the following issues:

Security issues fixed:

CVE-2018-14621: libtirpc: Infinite loop in EMFILE case in svc_vc.c (bsc#1106519)
CVE-2018-14622: libtirpc: Segmentation fault in makefd_xprt return value in svc_vc.c (bsc#1106517)

Record: SUSE-SU-2018:3146-1
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`libtirpc` SUSE:Linux Enterprise Software Development Kit 11 SP4 From an advisory covering 2 CVEs	before 0.2.1-1.13.6.1	0.2.1-1.13.6.1
`libtirpc` SUSE:Linux Enterprise Server 11 SP4 From an advisory covering 2 CVEs	before 0.2.1-1.13.6.1	0.2.1-1.13.6.1
`libtirpc` SUSE:Linux Enterprise Server for SAP Applications 11 SP4 From an advisory covering 2 CVEs	before 0.2.1-1.13.6.1	0.2.1-1.13.6.1

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-14621 is a medium vulnerability (CVSS 5.3) in [unknown] Libtirpc, published August 30, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.26%, the 83rd percentile. No source names a fixed version.

References

Show 7 moreShow less