CVE catalog
CVE-2023-42114
exim4: CVE-2023-42114
- Severity
- Medium · CVSS 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 26.86% · Oct 25, 2026
Exim NTLM Challenge Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information 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 user-supplied data, which can result in a read past the end of an allocated data structure. An attacker can leverage this vulnerability to disclose information in the context of the service account. . Was ZDI-CAN-17433.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | exim4 | sid | 4.100.1-4 | fixed |
| Debian | exim4 | forky | 4.100.1-4 | fixed |
| Debian | exim4 | trixie | 4.98.2-1+deb13u4 | fixed |
| Debian | exim4 | trixie-security | 4.98.2-1+deb13u5 | fixed |
| Debian | exim4 | bookworm | 4.96-15+deb12u10 | fixed |
| Debian | exim4 | bookworm-security | 4.96-15+deb12u10 | fixed |
| Ubuntu | exim4 | pro | 4.89-5ubuntu1 | vulnerable |
| Ubuntu | exim4 | pro | 4.89-9ubuntu1 | vulnerable |
| Ubuntu | exim4 | pro | 4.89-9ubuntu2 | vulnerable |
| Ubuntu | exim4 | pro | 4.89-9ubuntu3 | vulnerable |
| Ubuntu | exim4 | pro | 4.89-9ubuntu4 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1.1 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1.2 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1.3 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1.4 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1.5 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1.8 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1.9 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1.10 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1.10+esm1 | fixed |
| Ubuntu | exim4 | 20.04 | 4.92.1-1ubuntu3 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.92.1-1ubuntu4 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93~RC2-1ubuntu1 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93-9ubuntu1 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93-11ubuntu1 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93-12ubuntu1 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93-13ubuntu1 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93-13ubuntu1.1 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93-13ubuntu1.5 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93-13ubuntu1.6 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93-13ubuntu1.7 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93-13ubuntu1.8 | fixed |
| Ubuntu | exim4 | 22.04 | 4.94.2-7ubuntu2 | vulnerable |
| Ubuntu | exim4 | 22.04 | 4.95-2ubuntu2 | vulnerable |
| Ubuntu | exim4 | 22.04 | 4.95-4ubuntu1 | vulnerable |
| Ubuntu | exim4 | 22.04 | 4.95-4ubuntu2 | vulnerable |
| Ubuntu | exim4 | 22.04 | 4.95-4ubuntu2.1 | vulnerable |
| Ubuntu | exim4 | 22.04 | 4.95-4ubuntu2.2 | vulnerable |
| Ubuntu | exim4 | 22.04 | 4.95-4ubuntu2.3 | fixed |
| Ubuntu | exim4 | pro | 4.89-5ubuntu1 | vulnerable |
| Ubuntu | exim4 | pro | 4.89-9ubuntu1 | vulnerable |
| Ubuntu | exim4 | pro | 4.89-9ubuntu2 | vulnerable |
| Ubuntu | exim4 | pro | 4.89-9ubuntu3 | vulnerable |
| Ubuntu | exim4 | pro | 4.89-9ubuntu4 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1.1 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1.2 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1.3 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1.4 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1.5 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1.8 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1.9 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1.10 | vulnerable |
| Ubuntu | exim4 | pro | 4.90.1-1ubuntu1.10+esm1 | fixed |
| Ubuntu | exim4 | 20.04 | 4.92.1-1ubuntu3 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.92.1-1ubuntu4 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93~RC2-1ubuntu1 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93-9ubuntu1 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93-11ubuntu1 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93-12ubuntu1 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93-13ubuntu1 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93-13ubuntu1.1 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93-13ubuntu1.5 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93-13ubuntu1.6 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93-13ubuntu1.7 | vulnerable |
| Ubuntu | exim4 | 20.04 | 4.93-13ubuntu1.8 | fixed |
| Ubuntu | exim4 | 22.04 | 4.94.2-7ubuntu2 | vulnerable |
| Ubuntu | exim4 | 22.04 | 4.95-2ubuntu2 | vulnerable |
| Ubuntu | exim4 | 22.04 | 4.95-4ubuntu1 | vulnerable |
| Ubuntu | exim4 | 22.04 | 4.95-4ubuntu2 | vulnerable |
| Ubuntu | exim4 | 22.04 | 4.95-4ubuntu2.1 | vulnerable |
| Ubuntu | exim4 | 22.04 | 4.95-4ubuntu2.2 | vulnerable |
| Ubuntu | exim4 | 22.04 | 4.95-4ubuntu2.3 | fixed |
| Suse | exim | package hub 15 sp4 | 4.94.2-bp155.5.3.1 | fixed |
| Suse | exim | package hub 15 sp5 | 4.94.2-bp155.5.3.1 | fixed |
| Opensuse | exim | leap 15.4 | 4.94.2-bp155.5.3.1 | fixed |
| Opensuse | exim | leap 15.5 | 4.94.2-bp155.5.3.1 | fixed |
| Opensuse | exim | tumbleweed | 4.96.1-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | exim4 | source | sid | 4.97~RC1-2 | not yet assigned | Not reported | Not reported |
| Debian | exim4 | source | forky | 4.97~RC1-2 | not yet assigned | Not reported | Not reported |
| Debian | exim4 | source | trixie | 4.97~RC1-2 | not yet assigned | Not reported | Not reported |
| Debian | exim4 | source | bookworm | 4.96-15+deb12u2 | not yet assigned | Not reported | Not reported |
| Ubuntu | exim4 | deb | pro | 4.90.1-1ubuntu1.10+esm1 | Not reported | USN-6411-1 | Not reported |
| Ubuntu | exim4 | deb | 20.04 | 4.93-13ubuntu1.8 | Not reported | USN-6411-1 | Not reported |
| Ubuntu | exim4 | deb | 22.04 | 4.95-4ubuntu2.3 | Not reported | USN-6411-1 | Not reported |
| Ubuntu | exim4 | deb | pro | 4.90.1-1ubuntu1.10+esm1 | Not reported | UBUNTU-CVE-2023-42114 | Not reported |
| Ubuntu | exim4 | deb | 20.04 | 4.93-13ubuntu1.8 | Not reported | UBUNTU-CVE-2023-42114 | Not reported |
| Ubuntu | exim4 | deb | 22.04 | 4.95-4ubuntu2.3 | Not reported | UBUNTU-CVE-2023-42114 | Not reported |
| Suse | exim | rpm | package hub 15 sp4 | 4.94.2-bp155.5.3.1 | Not reported | OPENSUSE-SU-2023:0293-1 | Not reported |
| Suse | exim | rpm | package hub 15 sp5 | 4.94.2-bp155.5.3.1 | Not reported | OPENSUSE-SU-2023:0293-1 | Not reported |
| Opensuse | exim | rpm | leap 15.4 | 4.94.2-bp155.5.3.1 | Not reported | OPENSUSE-SU-2023:0293-1 | Not reported |
| Opensuse | exim | rpm | leap 15.5 | 4.94.2-bp155.5.3.1 | Not reported | OPENSUSE-SU-2023:0293-1 | Not reported |
| Opensuse | exim | rpm | tumbleweed | 4.96.1-1.1 | Not reported | OPENSUSE-SU-2024:13282-1 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2023_0293-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-42114]
- [https://osv.dev/vulnerability/DLA-3599-1]
- [https://osv.dev/vulnerability/DSA-5512-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2023-42114]
- [https://osv.dev/vulnerability/USN-6411-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2023:0293-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:13282-1]
- [https://security-tracker.debian.org/tracker/CVE-2023-42114]
- [https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2505.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]