Debian Security Bug TrackerDEBIANCVE:CVE-2023-42116CVE-2023-42116
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.3 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
28.9%
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.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | exim4 | < 4.96-15+deb12u2 | exim4_4.96-15+deb12u2_all.deb |
| Debian | 11 | all | exim4 | < 4.94.2-7+deb11u1 | exim4_4.94.2-7+deb11u1_all.deb |
| Debian | 10 | all | exim4 | < 4.92-8+deb10u8 | exim4_4.92-8+deb10u8_all.deb |
| Debian | 999 | all | exim4 | < 4.97~RC1-2 | exim4_4.97~RC1-2_all.deb |
| Debian | 13 | all | exim4 | < 4.97~RC1-2 | exim4_4.97~RC1-2_all.deb |
Related
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
8.3 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
28.9%