CVE-2018-14622: canonical ubuntu_linux Unchecked Return Value
Vulnerability summary
CVE-2018-14622 is a high (CVSS 7.5) Unchecked Return Value vulnerability in canonical ubuntu_linux. EPSS estimates a 3.86% chance of exploitation in the next 30 days, higher than 90% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 2 · Duplicates 1 · Related 2Timeline
- 30-08-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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 metrics
8 scores · 5 sources · 3 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST5.3MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- OSV · Red hatEcosystem advisory · calculated5.3MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
3.86%
Chance of exploitation in the next 30 days
Percentile
90%
Versus all other CVEs
30-day change
0.00 pp
From 3.86% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat8 products
- enterprise_linuxEOL7.0
- enterprise_linux_desktop7.0
- enterprise_linux_server_aus7.4
- enterprise_linux_server_eus7.4 | 7.5 | 7.6
- enterprise_linux_workstation7.0
Debian2 products
- libtirpc< 0.2.5-1+deb8u2 | < 0.2.5-1.3
- debian_linuxEOL8.0
[unknown]1 product
- libtirpc0.3.3-rc3
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04
Libtirpc_project1 product
- libtirpc< 0.3.3
Ubuntu1 product
- libtirpc< 0.2.2-5ubuntu2.1 | < 0.2.5-1ubuntu0.1 | < 0.2.5-1.2ubuntu0.1
6 vendors · 14 products
References
17 links- access.redhat.com/errata/RHBA-2017:1991Vendor AdvisoryX Refsource REDHATThird Party AdvisoryAdvisory
lists.debian.org/debian-lts-announce/2018/08/msg00034.htmlMailing ListX Refsource MLISTThird Party Advisory- bugzilla.novell.com/show_bug.cgi?id=968175X Refsource CONFIRMIssue TrackingThird Party AdvisoryREPORT
- bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14622X Refsource CONFIRMIssue TrackingThird Party AdvisoryREPORT
