Published: 06/05/2021 Updated: 04/10/2022

CVSS v2 Base Score: 7.5 | Impact Score: 6.4 | Exploitability Score: 10

CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9

VMScore: 668

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Exim 4 prior to 4.94.2 allows Integer Overflow to Buffer Overflow in receive_add_recipient via an e-mail message with fifty million recipients. NOTE: remote exploitation may be difficult because of resource consumption.

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exim exim

The Qualys Research Labs reported several vulnerabilities in Exim, a mail transport agent, which could result in local privilege escalation and remote code execution Details can be found in the Qualys advisory at wwwqualyscom/2021/05/04/21nails/21nailstxt For the stable distribution (buster), these problems have been fixed in version 4 ...

Prior versions of Exim 4 have Improper Neutralization of Line Delimiters Local users can alter the behavior of root processes because a recipient address can have a newline character (<a href="nvdnistgov/vuln/detail/CVE%2D2020-28015">CVE-2020-28015</a>) Prior versions of Exim 4 allowed Integer Overflow to Buffer Overflow in ...

An integer overflow in receive_add_recipient() has been found in Exim before version 4942 ...

NMAP vulnerability scanning scripts A collection of nmap vulnerability scanning scripts to aid afforable detection and remediation Background These scripts use the Nmap Scripting Engine (NSE) to implement checks for various vulnerabilities References: nmaporg/book/man-nsehtml nmaporg/nsedoc/indexhtml Scripts Exim mailserver CVE-2020-28017 through CVE-20

NMAP Vulnerability Scanning Scripts

NMAP vulnerability scanning scripts A collection of nmap vulnerability scanning scripts to aid afforable detection and remediation Background These scripts use the Nmap Scripting Engine (NSE) to implement checks for various vulnerabilities References: nmaporg/book/man-nsehtml nmaporg/nsedoc/indexhtml Scripts Exim mailserver CVE-2020-28017 through CVE-20

CWE-190 https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28017-RCPTL.txt https://www.debian.org/security/2021/dsa-4912 https://nvd.nist.gov https://github.com/nccgroup/nmap-nse-vulnerability-scripts

CVE-2020-28017

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