CVE-2023-42116

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Source
https://nvd.nist.gov/vuln/detail/CVE-2023-42116
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-42116.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-42116
Related
Published
2024-05-03T03:15:50Z
Modified
2024-09-18T20:48:59.609955Z
Summary
[none]
Details

Exim SMTP Challenge Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Exim. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the handling of NTLM challenge requests. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the service account. . Was ZDI-CAN-17515.

References

Affected packages

Debian:11 / exim4

Package

Name
exim4
Purl
pkg:deb/debian/exim4?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.94.2-7+deb11u1

Affected versions

4.*

4.94.2-7

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / exim4

Package

Name
exim4
Purl
pkg:deb/debian/exim4?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.96-15+deb12u2

Affected versions

4.*

4.96-15
4.96-15+deb12u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / exim4

Package

Name
exim4
Purl
pkg:deb/debian/exim4?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.97~RC1-2

Affected versions

4.*

4.96-15
4.96-16
4.96-17
4.96-18
4.96-19
4.96-20
4.96-21
4.96-22
4.97~RC0-1
4.97~RC0-2
4.97~RC0-3
4.97~RC1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}