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5.3
MEDIUM CVSS 3.0
CVE-2018-9251
Libxml2 LZMA Infinite Loop Denial of Service
Description

The xz_decomp function in xzlib.c in libxml2 2.9.8, if --with-lzma is used, allows remote attackers to cause a denial of service (infinite loop) via a crafted XML file that triggers LZMA_MEMLIMIT_ERROR, as demonstrated by xmllint, a different vulnerability than CVE-2015-8035.

INFO

Published Date :

April 4, 2018, 2:29 a.m.

Last Modified :

Nov. 21, 2024, 4:15 a.m.

Remotely Exploit :

Yes !

Source :

[email protected]
Affected Products

The following products are affected by CVE-2018-9251 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Debian debian_linux
1 Xmlsoft libxml2
: Total Affected Vendor : 2 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 LOW [email protected]
CVSS 3.0 MEDIUM [email protected]
Solution
To address the libxml2 LZMA infinite loop denial of service vulnerability, update the affected packages.
  • Update the libxml2 packages.
  • If applicable, update the libxml2-devel and / or python3-libxml2 packages.
Public PoC/Exploit Available at Github

CVE-2018-9251 has a 9 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-9251.

URL Resource
https://bugzilla.gnome.org/show_bug.cgi?id=794914 Exploit Issue Tracking Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html Third Party Advisory
https://bugzilla.gnome.org/show_bug.cgi?id=794914 Exploit Issue Tracking Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-9251 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-9251 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
Mohzeela/external-secret

None

Go Dockerfile JavaScript HTML CSS HCL

Updated: 4 months, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : Aug. 3, 2022, 7:11 p.m. This repo has been linked 61 different CVEs too.
Profile Photo
umahari/security

None

Dockerfile Makefile Shell Go Smarty Open Policy Agent Mustache

Updated: 4 years, 6 months ago
0 stars 1 fork 1 watcher
Born at : Feb. 25, 2021, 9:59 a.m. This repo has been linked 61 different CVEs too.
Profile Photo
siddharthraopotukuchi/trivy

None

Dockerfile Makefile

Updated: 3 years, 1 month ago
1 stars 0 fork 0 watcher
Born at : Dec. 15, 2020, 7:02 p.m. This repo has been linked 61 different CVEs too.
Profile Photo
t31m0/Vulnerability-Scanner-for-Containers

None

Dockerfile Makefile Shell Go Smarty Open Policy Agent

Updated: 9 months, 2 weeks ago
1 stars 0 fork 0 watcher
Born at : Sept. 21, 2020, 7:37 a.m. This repo has been linked 61 different CVEs too.
Profile Photo
simiyo/trivy

None

Dockerfile Makefile Shell Go Smarty

Updated: 5 years, 3 months ago
0 stars 0 fork 0 watcher
Born at : June 6, 2020, 2:22 a.m. This repo has been linked 54 different CVEs too.
Profile Photo
KorayAgaya/TrivyWeb

A Simple and Comprehensive Vulnerability Scanner for Containers, Suitable for CI for Web

Python HTML CSS JavaScript

Updated: 1 year, 1 month ago
0 stars 0 fork 0 watcher
Born at : Aug. 2, 2019, 8:26 a.m. This repo has been linked 51 different CVEs too.
Profile Photo
revl-ca/scan-docker-image

None

Shell

Updated: 6 years, 2 months ago
0 stars 0 fork 0 watcher
Born at : July 18, 2019, 10:49 p.m. This repo has been linked 124 different CVEs too.
Profile Photo
andir/nixos-issue-db-example

None

Updated: 5 years, 6 months ago
1 stars 0 fork 0 watcher
Born at : July 17, 2018, 7:48 p.m. This repo has been linked 494 different CVEs too.
Profile Photo
junxzm1990/afl-pt

None

Makefile C Shell PLpgSQL HTML C++ JavaScript Roff Awk M4

Updated: 7 months ago
53 stars 11 fork 11 watcher
Born at : June 14, 2017, 5:39 a.m. This repo has been linked 8 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-9251 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2018-9251 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://bugzilla.gnome.org/show_bug.cgi?id=794914
    Added Reference https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-400 CWE-400 CWE-20 CWE-835
  • Modified Analysis by [email protected]

    Feb. 27, 2019

    Action Type Old Value New Value
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html No Types Assigned https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Sep. 28, 2018

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2018/09/msg00035.html [No Types Assigned]
  • Initial Analysis by [email protected]

    May. 10, 2018

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 (AV:N/AC:H/Au:N/C:N/I:N/A:P)
    Added CVSS V3 AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
    Changed Reference Type https://bugzilla.gnome.org/show_bug.cgi?id=794914 No Types Assigned https://bugzilla.gnome.org/show_bug.cgi?id=794914 Exploit, Issue Tracking, Third Party Advisory
    Added CWE CWE-400
    Added CPE Configuration OR *cpe:2.3:a:xmlsoft:libxml2:2.9.8:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 5.3
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 2.6
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.83 }} -0.25%

score

0.73710

percentile