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CVE-2018-14567

24
FAUCET Score

CVE-2018-14567 is a denial-of-service vulnerability in libxml2 versions 2.9.8 and earlier, specifically when compiled with LZMA support, affecting various Linux distributions. A remote attacker can trigger an infinite loop by providing a specially crafted XML file, leading to system unavailability. This vulnerability has a CVSS score of 6.5 (Medium), indicating it can be exploited over a network with low attack complexity and no privileges, requiring user interaction to achieve high availability impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.9.8CPE matchmatch criteria
cpe:2.3:a:xmlsoft:libxml2:2.9.8:*:*:*:*:*:*:*
14.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
16.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
18.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.30%
Probability of exploitation in next 30 days
EPSS Percentile
90.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0430 is in the 96th percentile among its peer group of 26,236 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

redhatpatch availablevia redhat_api
Product: Red Hat Ansible Tower 3.5 for RHEL 7Fixed in: ansible-tower-35/ansible-tower:3.5.6-1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ansible Tower 3.6 for RHEL 7Fixed in: ansible-tower-36/ansible-tower:3.6.4-1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: libxml2-0:2.9.1-6.el7.4
View patch
redhatend of lifevia redhat_api
Product: Red Hat Virtualization 4Fixed in: libxml2

Vendor Advisories (1)

redhatCVE-2018-14567Low

libxml2: Infinite loop caused by incorrect error detection during LZMA decompression

Apr 3, 2018

References

gitlab.gnome.org / GNOME/libxml2/commit/2240fbf5912054af025fb6e01e26375100275e74
PatchThird Party Advisory
lists.debian.org / debian-lts-announce/2018/09/msg00035.html
Third Party Advisory
lists.debian.org / debian-lts-announce/2020/09/msg00009.html
usn.ubuntu.com / 3739-1
Third Party Advisory
securityfocus.com / bid/105198
Third Party AdvisoryVDB Entry