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Vulnerability Details : CVE-2020-35452

Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Digest nonce can cause a stack overflow in mod_auth_digest. There is no report of this overflow being exploitable, nor the Apache HTTP Server team could create one, though some particular compiler and/or compilation option might make it possible, with limited consequences anyway due to the size (a single byte) and the value (zero byte) of the overflow
Publish Date : 2021-06-10 Last Update Date : 2021-12-01
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Overflow
CWE ID 787

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2022:1915: httpd:2.4 security and bug fix update (Moderate) oval:com.redhat.rhsa:def:20221915 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2020-35452

# Product Type Vendor Product Version Update Edition Language
1 Application Apache Http Server * * * * Version Details Vulnerabilities
2 OS Debian Debian Linux 9.0 * * * Version Details Vulnerabilities
3 OS Debian Debian Linux 10.0 * * * Version Details Vulnerabilities
4 OS Fedoraproject Fedora 34 * * * Version Details Vulnerabilities
5 OS Fedoraproject Fedora 35 * * * Version Details Vulnerabilities
6 Application Oracle Enterprise Manager Ops Center * * * Version Details Vulnerabilities
7 Application Oracle Instantis Enterprisetrack 17.1 * * * Version Details Vulnerabilities
8 Application Oracle Instantis Enterprisetrack 17.2 * * * Version Details Vulnerabilities
9 Application Oracle Instantis Enterprisetrack 17.3 * * * Version Details Vulnerabilities
10 Application Oracle Zfs Storage Appliance Kit 8.8 * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Apache Http Server 1
Debian Debian Linux 2
Fedoraproject Fedora 2
Oracle Enterprise Manager Ops Center 1
Oracle Instantis Enterprisetrack 3
Oracle Zfs Storage Appliance Kit 1

- References For CVE-2020-35452
CONFIRM N/A[email protected]/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/
FEDORA FEDORA-2021-e3f6dd670d
GENTOO GLSA-202107-38
DEBIAN DSA-4937[email protected]
MLIST [httpd-announce] 20210609 CVE-2020-35452: mod_auth_digest possible stack overflow by one nul byte
MLIST [debian-lts-announce] 20210709 [SECURITY] [DLA 2706-1] apache2 security update CONFIRM
MLIST [oss-security] 20210609 CVE-2020-35452: Apache httpd: mod_auth_digest possible stack overflow by one nul byte[email protected]
MLIST [httpd-dev] 20210610 Re: svn commit: r1890598 - in /httpd/site/trunk/content/security/json: CVE-2019-17567.json CVE-2020-13938.json CVE-2020-13950.json CVE-2020-35452.json CVE-2021-26690.json CVE-2021-26691.json CVE-2021-30641.json CVE-2021-31618.json[email protected]/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/
FEDORA FEDORA-2021-dce7e7738e

- Metasploit Modules Related To CVE-2020-35452

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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