xmlsoft libxml2 CVE-2020-7595 vulnerability in Xmlsoft and Other Products
Published on January 21, 2020

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xmlStringLenDecodeEntities in parser.c in libxml2 2.9.10 has an infinite loop in a certain end-of-file situation.

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Vulnerability Analysis

CVE-2020-7595 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. An automatable proof of concept (POC) exploit exists. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity, and a high impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH

Weakness Type

What is an Infinite Loop Vulnerability?

The program contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. If the loop can be influenced by an attacker, this weakness could allow attackers to consume excessive resources such as CPU or memory.

CVE-2020-7595 has been classified to as an Infinite Loop vulnerability or weakness.


Products Associated with CVE-2020-7595

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Vulnerable Packages

The following package name and versions may be associated with CVE-2020-7595

Package Manager Vulnerable Package Versions Fixed In
rubygems nokogiri < 1.11.4 1.11.4

Exploit Probability

EPSS
0.47%
Percentile
63.86%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.