CVE Vulnerabilities

CVE-2020-36228

Integer Underflow (Wrap or Wraparound)

Published: Jan 26, 2021 | Modified: Nov 07, 2023
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
7.5 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM

An integer underflow was discovered in OpenLDAP before 2.4.57 leading to a slapd crash in the Certificate List Exact Assertion processing, resulting in denial of service.

Weakness

The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

Affected Software

Name Vendor Start Version End Version
Openldap Openldap * 2.4.57 (excluding)
Openldap Ubuntu bionic *
Openldap Ubuntu devel *
Openldap Ubuntu esm-infra-legacy/trusty *
Openldap Ubuntu focal *
Openldap Ubuntu groovy *
Openldap Ubuntu hirsute *
Openldap Ubuntu impish *
Openldap Ubuntu jammy *
Openldap Ubuntu kinetic *
Openldap Ubuntu lunar *
Openldap Ubuntu mantic *
Openldap Ubuntu noble *
Openldap Ubuntu oracular *
Openldap Ubuntu precise/esm *
Openldap Ubuntu trusty *
Openldap Ubuntu trusty/esm *
Openldap Ubuntu upstream *
Openldap Ubuntu xenial *

References