Vulnerability-Lookup

CVE-2023-42119 (GCVE-0-2023-42119)

Vulnerability from cvelistv5 – Published: 2024-05-03 02:13 – Updated: 2025-11-03 21:49

Title

Exim dnsdb Out-Of-Bounds Read Information Disclosure Vulnerability

Summary

Exim dnsdb Out-Of-Bounds Read Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Exim. Authentication is not required to exploit this vulnerability. The specific flaw exists within the smtp service, which listens on TCP port 25 by default. 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 buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the service account. . Was ZDI-CAN-17643.

Severity

3.1 (Low)


                        
                          CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-125 - Out-of-bounds Read

Assigner

zdi

References

2 references

URL	Tags
https://www.zerodayinitiative.com/advisories/ZDI-…	x_research-advisory
https://lists.debian.org/debian-lts-announce/2024…

Impacted products

1 product

Vendor	Product	Version
Exim	Exim	Affected: exim 4.96-RC0-14-24b8ed847-XX

Date Public

2023-09-27 22:21

Show details on NVD website

JSON

To clipboard

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WID-SEC-W-2023-2505

Vulnerability from csaf_certbund - Published: 2023-09-27 22:00 - Updated: 2026-06-10 22:00

Summary

Exim: Mehrere Schwachstellen

Severity

Kritisch

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung: Exim (EXperimental Internet Mailer) ist ein Mailserver und Mail Transfer Agent.

Angriff: Ein Angreifer kann mehrere Schwachstellen in Exim ausnutzen, um beliebigen Programmcode auszuführen oder Informationen offenzulegen.

Betroffene Betriebssysteme: - Linux - UNIX

CVE-2023-42115

Affected products

Known affected 6 products

Product	Identifier	Version
Debian Linux Debian	`cpe:/o:debian:debian_linux:-`	—
Ubuntu Linux Ubuntu	`cpe:/o:canonical:ubuntu_linux:-`	—
Open Source Exim Open Source	`cpe:/a:exim:exim:-`	—
Amazon Linux 2 Amazon	`cpe:/o:amazon:linux_2:-`	—
Gentoo Linux Gentoo	`cpe:/o:gentoo:linux:-`	—
Fedora Linux Fedora	`cpe:/o:fedoraproject:fedora:-`	—

CVE-2023-42116

Affected products

Known affected 6 products

Product	Identifier	Version
Debian Linux Debian	`cpe:/o:debian:debian_linux:-`	—
Ubuntu Linux Ubuntu	`cpe:/o:canonical:ubuntu_linux:-`	—
Open Source Exim Open Source	`cpe:/a:exim:exim:-`	—
Amazon Linux 2 Amazon	`cpe:/o:amazon:linux_2:-`	—
Gentoo Linux Gentoo	`cpe:/o:gentoo:linux:-`	—
Fedora Linux Fedora	`cpe:/o:fedoraproject:fedora:-`	—

CVE-2023-42117

Affected products

Known affected 6 products

Product	Identifier	Version
Debian Linux Debian	`cpe:/o:debian:debian_linux:-`	—
Ubuntu Linux Ubuntu	`cpe:/o:canonical:ubuntu_linux:-`	—
Open Source Exim Open Source	`cpe:/a:exim:exim:-`	—
Amazon Linux 2 Amazon	`cpe:/o:amazon:linux_2:-`	—
Gentoo Linux Gentoo	`cpe:/o:gentoo:linux:-`	—
Fedora Linux Fedora	`cpe:/o:fedoraproject:fedora:-`	—

CVE-2023-42114

Affected products

Known affected 6 products

Product	Identifier	Version
Debian Linux Debian	`cpe:/o:debian:debian_linux:-`	—
Ubuntu Linux Ubuntu	`cpe:/o:canonical:ubuntu_linux:-`	—
Open Source Exim Open Source	`cpe:/a:exim:exim:-`	—
Amazon Linux 2 Amazon	`cpe:/o:amazon:linux_2:-`	—
Gentoo Linux Gentoo	`cpe:/o:gentoo:linux:-`	—
Fedora Linux Fedora	`cpe:/o:fedoraproject:fedora:-`	—

CVE-2023-42118

Affected products

Known affected 6 products

Product	Identifier	Version
Debian Linux Debian	`cpe:/o:debian:debian_linux:-`	—
Ubuntu Linux Ubuntu	`cpe:/o:canonical:ubuntu_linux:-`	—
Open Source Exim Open Source	`cpe:/a:exim:exim:-`	—
Amazon Linux 2 Amazon	`cpe:/o:amazon:linux_2:-`	—
Gentoo Linux Gentoo	`cpe:/o:gentoo:linux:-`	—
Fedora Linux Fedora	`cpe:/o:fedoraproject:fedora:-`	—

CVE-2023-42119

Affected products

Known affected 6 products

Product	Identifier	Version
Debian Linux Debian	`cpe:/o:debian:debian_linux:-`	—
Ubuntu Linux Ubuntu	`cpe:/o:canonical:ubuntu_linux:-`	—
Open Source Exim Open Source	`cpe:/a:exim:exim:-`	—
Amazon Linux 2 Amazon	`cpe:/o:amazon:linux_2:-`	—
Gentoo Linux Gentoo	`cpe:/o:gentoo:linux:-`	—
Fedora Linux Fedora	`cpe:/o:fedoraproject:fedora:-`	—

References

29 references

URL	Category
https://wid.cert-bund.de/.well-known/csaf/white/2…	self
https://wid.cert-bund.de/portal/wid/securityadvis…	self
https://exchange.xforce.ibmcloud.com/vulnerabilit…	external
https://exchange.xforce.ibmcloud.com/vulnerabilit…	external
https://exchange.xforce.ibmcloud.com/vulnerabilit…	external
https://exchange.xforce.ibmcloud.com/vulnerabilit…	external
https://exchange.xforce.ibmcloud.com/vulnerabilit…	external
https://exchange.xforce.ibmcloud.com/vulnerabilit…	external
https://bodhi.fedoraproject.org/updates/FEDORA-20…	external
https://bodhi.fedoraproject.org/updates/FEDORA-EP…	external
https://bodhi.fedoraproject.org/updates/FEDORA-20…	external
https://bodhi.fedoraproject.org/updates/FEDORA-20…	external
https://bodhi.fedoraproject.org/updates/FEDORA-20…	external
https://bodhi.fedoraproject.org/updates/FEDORA-20…	external
https://bodhi.fedoraproject.org/updates/FEDORA-20…	external
https://bodhi.fedoraproject.org/updates/FEDORA-20…	external
https://bodhi.fedoraproject.org/updates/FEDORA-EP…	external
https://lists.debian.org/debian-lts-announce/2023…	external
https://bodhi.fedoraproject.org/updates/FEDORA-EP…	external
https://bodhi.fedoraproject.org/updates/FEDORA-EP…	external
https://lists.debian.org/debian-security-announce…	external
https://bodhi.fedoraproject.org/updates/FEDORA-EP…	external
https://bodhi.fedoraproject.org/updates/FEDORA-EP…	external
https://ubuntu.com/security/notices/USN-6411-1	external
https://alas.aws.amazon.com/ALAS-2023-1860.html	external
https://ubuntu.com/security/notices/USN-6455-1	external
https://security.gentoo.org/glsa/202402-18	external
https://lists.debian.org/debian-lts-announce/2024…	external
https://ubuntu.com/security/notices/USN-6455-2	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "kritisch"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Exim (EXperimental Internet Mailer) ist ein Mailserver und Mail Transfer Agent.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein Angreifer kann mehrere Schwachstellen in Exim ausnutzen, um beliebigen Programmcode auszuf\u00fchren oder Informationen offenzulegen.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- Linux\n- UNIX",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
      "category": "other",
      "contact_details": "csaf-provider@cert-bund.de",
      "name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
      "namespace": "https://www.bsi.bund.de"
    },
    "references": [
      {
        "category": "self",
        "summary": "WID-SEC-W-2023-2505 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2505.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2023-2505 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-2505"
      },
      {
        "category": "external",
        "summary": "IBM X-Force Exchange Advisory vom 2023-09-27",
        "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/267177"
      },
      {
        "category": "external",
        "summary": "IBM X-Force Exchange Advisory vom 2023-09-27",
        "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/267176"
      },
      {
        "category": "external",
        "summary": "IBM X-Force Exchange Advisory vom 2023-09-27",
        "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/267175"
      },
      {
        "category": "external",
        "summary": "IBM X-Force Exchange Advisory vom 2023-09-27",
        "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/267173"
      },
      {
        "category": "external",
        "summary": "IBM X-Force Exchange Advisory vom 2023-09-27",
        "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/267172"
      },
      {
        "category": "external",
        "summary": "IBM X-Force Exchange Advisory vom 2023-09-27",
        "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/267168"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2023-B317DD9220 vom 2023-10-02",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2023-b317dd9220"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-EPEL-2023-2EDA308E31 vom 2023-10-02",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-2eda308e31"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2023-0A7690525F vom 2023-10-02",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2023-0a7690525f"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2023-0ABCFEBECD vom 2023-10-02",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2023-0abcfebecd"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2023-C737BEF4E1 vom 2023-10-02",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2023-c737bef4e1"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2023-AE340C92EA vom 2023-10-02",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2023-ae340c92ea"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2023-42313AF0DE vom 2023-10-02",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2023-42313af0de"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-2023-7F01E967AD vom 2023-10-02",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-2023-7f01e967ad"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-EPEL-2023-BFDE2B0C7C vom 2023-10-02",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-bfde2b0c7c"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-3599 vom 2023-10-02",
        "url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00002.html"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-EPEL-2023-2661620873 vom 2023-10-02",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-2661620873"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-EPEL-2023-BB93ECB59D vom 2023-10-02",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-bb93ecb59d"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DSA-5512 vom 2023-10-02",
        "url": "https://lists.debian.org/debian-security-announce/2023/msg00205.html"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-EPEL-2023-458A169F82 vom 2023-10-02",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-458a169f82"
      },
      {
        "category": "external",
        "summary": "Fedora Security Advisory FEDORA-EPEL-2023-35A1E9B1B2 vom 2023-10-02",
        "url": "https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2023-35a1e9b1b2"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6411-1 vom 2023-10-04",
        "url": "https://ubuntu.com/security/notices/USN-6411-1"
      },
      {
        "category": "external",
        "summary": "Amazon Linux Security Advisory ALAS-2023-1860 vom 2023-10-25",
        "url": "https://alas.aws.amazon.com/ALAS-2023-1860.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6455-1 vom 2023-10-30",
        "url": "https://ubuntu.com/security/notices/USN-6455-1"
      },
      {
        "category": "external",
        "summary": "Gentoo Linux Security Advisory GLSA-202402-18 vom 2024-02-18",
        "url": "https://security.gentoo.org/glsa/202402-18"
      },
      {
        "category": "external",
        "summary": "Debian Security Advisory DLA-3938 vom 2024-10-29",
        "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00029.html"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6455-2 vom 2026-06-10",
        "url": "https://ubuntu.com/security/notices/USN-6455-2"
      }
    ],
    "source_lang": "en-US",
    "title": "Exim: Mehrere Schwachstellen",
    "tracking": {
      "current_release_date": "2026-06-10T22:00:00.000+00:00",
      "generator": {
        "date": "2026-06-11T10:50:56.370+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.6.0"
        }
      },
      "id": "WID-SEC-W-2023-2505",
      "initial_release_date": "2023-09-27T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2023-09-27T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2023-10-03T22:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Fedora und Debian aufgenommen"
        },
        {
          "date": "2023-10-04T22:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2023-10-24T22:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Amazon aufgenommen"
        },
        {
          "date": "2023-10-29T23:00:00.000+00:00",
          "number": "5",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2024-02-18T23:00:00.000+00:00",
          "number": "6",
          "summary": "Neue Updates von Gentoo aufgenommen"
        },
        {
          "date": "2024-10-28T23:00:00.000+00:00",
          "number": "7",
          "summary": "Neue Updates von Debian aufgenommen"
        },
        {
          "date": "2026-06-10T22:00:00.000+00:00",
          "number": "8",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        }
      ],
      "status": "final",
      "version": "8"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Amazon Linux 2",
            "product": {
              "name": "Amazon Linux 2",
              "product_id": "398363",
              "product_identification_helper": {
                "cpe": "cpe:/o:amazon:linux_2:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Amazon"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Debian Linux",
            "product": {
              "name": "Debian Linux",
              "product_id": "2951",
              "product_identification_helper": {
                "cpe": "cpe:/o:debian:debian_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Debian"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Fedora Linux",
            "product": {
              "name": "Fedora Linux",
              "product_id": "74185",
              "product_identification_helper": {
                "cpe": "cpe:/o:fedoraproject:fedora:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Fedora"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Gentoo Linux",
            "product": {
              "name": "Gentoo Linux",
              "product_id": "T012167",
              "product_identification_helper": {
                "cpe": "cpe:/o:gentoo:linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Gentoo"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Open Source Exim",
            "product": {
              "name": "Open Source Exim",
              "product_id": "T007959",
              "product_identification_helper": {
                "cpe": "cpe:/a:exim:exim:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Open Source"
      },
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Ubuntu Linux",
            "product": {
              "name": "Ubuntu Linux",
              "product_id": "T000126",
              "product_identification_helper": {
                "cpe": "cpe:/o:canonical:ubuntu_linux:-"
              }
            }
          }
        ],
        "category": "vendor",
        "name": "Ubuntu"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-42115",
      "product_status": {
        "known_affected": [
          "2951",
          "T000126",
          "T007959",
          "398363",
          "T012167",
          "74185"
        ]
      },
      "release_date": "2023-09-27T22:00:00.000+00:00",
      "title": "CVE-2023-42115"
    },
    {
      "cve": "CVE-2023-42116",
      "product_status": {
        "known_affected": [
          "2951",
          "T000126",
          "T007959",
          "398363",
          "T012167",
          "74185"
        ]
      },
      "release_date": "2023-09-27T22:00:00.000+00:00",
      "title": "CVE-2023-42116"
    },
    {
      "cve": "CVE-2023-42117",
      "product_status": {
        "known_affected": [
          "2951",
          "T000126",
          "T007959",
          "398363",
          "T012167",
          "74185"
        ]
      },
      "release_date": "2023-09-27T22:00:00.000+00:00",
      "title": "CVE-2023-42117"
    },
    {
      "cve": "CVE-2023-42114",
      "product_status": {
        "known_affected": [
          "2951",
          "T000126",
          "T007959",
          "398363",
          "T012167",
          "74185"
        ]
      },
      "release_date": "2023-09-27T22:00:00.000+00:00",
      "title": "CVE-2023-42114"
    },
    {
      "cve": "CVE-2023-42118",
      "product_status": {
        "known_affected": [
          "2951",
          "T000126",
          "T007959",
          "398363",
          "T012167",
          "74185"
        ]
      },
      "release_date": "2023-09-27T22:00:00.000+00:00",
      "title": "CVE-2023-42118"
    },
    {
      "cve": "CVE-2023-42119",
      "product_status": {
        "known_affected": [
          "2951",
          "T000126",
          "T007959",
          "398363",
          "T012167",
          "74185"
        ]
      },
      "release_date": "2023-09-27T22:00:00.000+00:00",
      "title": "CVE-2023-42119"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2023-42119 (GCVE-0-2023-42119)

WID-SEC-W-2023-2505

Tags

Sightings

Nomenclature