isc bind CVE-2020-8618 vulnerability in ISC and Other Products
Published on June 17, 2020

A buffer boundary check assertion in rdataset.c can fail incorrectly during zone transfer

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An attacker who is permitted to send zone data to a server via zone transfer can exploit this to intentionally trigger the assertion failure with a specially constructed zone, denying service to clients.

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Vulnerability Analysis

CVE-2020-8618 is exploitable with network access, and requires user privileges. This vulnerability is considered to have a low attack complexity. 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:
HIGH
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
NONE
Integrity Impact:
NONE
Availability Impact:
HIGH

Products Associated with CVE-2020-8618

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2020-8618 are published in these products:

ISC BIND
 
OpenSuse Leap
 
NetApp Steelstore Cloud Integrated Storage
 
Canonical Ubuntu Linux
 

Affected Versions

ISC BIND9 Version 9.16.0 -> 9.16.3 is affected by CVE-2020-8618

Exploit Probability

EPSS
1.30%
Percentile
79.60%

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.