Vulnerability-Lookup

OESA-2024-1489 (CVE-2023-50387)

Vulnerability from osv_openeuler – Published: 2024-04-26 11:06 – Updated: 2026-08-06 11:06 – Source website

Summary

systemd security update

Details

systemd is a system and service manager that runs as PID 1 and starts the rest of the system.

Security Fix(es):

Certain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the "KeyTrap" issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.(CVE-2023-50387)

The Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC responses in a random subdomain attack, aka the "NSEC3" issue. The RFC 5155 specification implies that an algorithm must perform thousands of iterations of a hash function in certain situations.(CVE-2023-50868)

Severity

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

URL

Type

	https://www.openeuler.org/en/security/safety-bull…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-50387	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2023-50868	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "systemd-debuginfo-243-78.oe1.aarch64.rpm",
          "systemd-resolved-243-78.oe1.aarch64.rpm",
          "systemd-nspawn-243-78.oe1.aarch64.rpm",
          "systemd-243-78.oe1.aarch64.rpm",
          "systemd-networkd-243-78.oe1.aarch64.rpm",
          "systemd-container-243-78.oe1.aarch64.rpm",
          "systemd-devel-243-78.oe1.aarch64.rpm",
          "systemd-timesyncd-243-78.oe1.aarch64.rpm",
          "systemd-journal-remote-243-78.oe1.aarch64.rpm",
          "systemd-debugsource-243-78.oe1.aarch64.rpm",
          "systemd-pam-243-78.oe1.aarch64.rpm",
          "systemd-libs-243-78.oe1.aarch64.rpm",
          "systemd-udev-243-78.oe1.aarch64.rpm",
          "systemd-udev-compat-243-78.oe1.aarch64.rpm"
        ],
        "noarch": [
          "systemd-help-243-78.oe1.noarch.rpm"
        ],
        "src": [
          "systemd-243-78.oe1.src.rpm"
        ],
        "x86_64": [
          "systemd-container-243-78.oe1.x86_64.rpm",
          "systemd-libs-243-78.oe1.x86_64.rpm",
          "systemd-networkd-243-78.oe1.x86_64.rpm",
          "systemd-debugsource-243-78.oe1.x86_64.rpm",
          "systemd-udev-243-78.oe1.x86_64.rpm",
          "systemd-nspawn-243-78.oe1.x86_64.rpm",
          "systemd-pam-243-78.oe1.x86_64.rpm",
          "systemd-debuginfo-243-78.oe1.x86_64.rpm",
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          "systemd-243-78.oe1.x86_64.rpm",
          "systemd-journal-remote-243-78.oe1.x86_64.rpm",
          "systemd-devel-243-78.oe1.x86_64.rpm",
          "systemd-timesyncd-243-78.oe1.x86_64.rpm",
          "systemd-resolved-243-78.oe1.x86_64.rpm"
        ]
      },
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      },
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        }
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          "systemd-249-74.oe2203sp2.aarch64.rpm",
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          "systemd-networkd-249-74.oe2203sp2.aarch64.rpm",
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          "systemd-timesyncd-249-74.oe2203sp2.aarch64.rpm",
          "systemd-debugsource-249-77.oe2203sp3.aarch64.rpm",
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          "systemd-nspawn-249-77.oe2203sp3.aarch64.rpm",
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          "systemd-timesyncd-249-77.oe2203sp3.aarch64.rpm"
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          "systemd-help-249-75.oe2203sp1.noarch.rpm",
          "systemd-help-249-74.oe2203sp2.noarch.rpm",
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        ],
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          "systemd-249-77.oe2203sp3.src.rpm"
        ],
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          "systemd-udev-249-75.oe2203.x86_64.rpm",
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          "systemd-udev-249-75.oe2203sp1.aarch64.rpm",
          "systemd-networkd-249-75.oe2203sp1.aarch64.rpm",
          "systemd-nspawn-249-75.oe2203sp1.aarch64.rpm",
          "systemd-resolved-249-75.oe2203sp1.aarch64.rpm"
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          "systemd-pam-249-75.oe2203sp1.x86_64.rpm",
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          "systemd-timesyncd-249-75.oe2203sp1.x86_64.rpm",
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        "name": "systemd",
        "purl": "pkg:rpm/openEuler/systemd\u0026distro=openEuler-22.03-LTS-SP1"
      },
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          "systemd-249-74.oe2203sp2.aarch64.rpm",
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          "systemd-debuginfo-249-74.oe2203sp2.aarch64.rpm",
          "systemd-networkd-249-74.oe2203sp2.aarch64.rpm",
          "systemd-devel-249-74.oe2203sp2.aarch64.rpm",
          "systemd-resolved-249-74.oe2203sp2.aarch64.rpm",
          "systemd-nspawn-249-74.oe2203sp2.aarch64.rpm",
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          "systemd-resolved-249-74.oe2203sp2.x86_64.rpm",
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          "systemd-debuginfo-249-74.oe2203sp2.x86_64.rpm"
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      "package": {
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        "name": "systemd",
        "purl": "pkg:rpm/openEuler/systemd\u0026distro=openEuler-22.03-LTS-SP2"
      },
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            }
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        }
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    },
    {
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          "systemd-libs-249-77.oe2203sp3.aarch64.rpm",
          "systemd-devel-249-77.oe2203sp3.aarch64.rpm",
          "systemd-networkd-249-77.oe2203sp3.aarch64.rpm",
          "systemd-nspawn-249-77.oe2203sp3.aarch64.rpm",
          "systemd-pam-249-77.oe2203sp3.aarch64.rpm",
          "systemd-udev-249-77.oe2203sp3.aarch64.rpm",
          "systemd-249-77.oe2203sp3.aarch64.rpm",
          "systemd-container-249-77.oe2203sp3.aarch64.rpm",
          "systemd-resolved-249-77.oe2203sp3.aarch64.rpm",
          "systemd-debuginfo-249-77.oe2203sp3.aarch64.rpm",
          "systemd-timesyncd-249-77.oe2203sp3.aarch64.rpm"
        ],
        "noarch": [
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        ],
        "src": [
          "systemd-249-77.oe2203sp3.src.rpm"
        ],
        "x86_64": [
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          "systemd-249-77.oe2203sp3.x86_64.rpm",
          "systemd-timesyncd-249-77.oe2203sp3.x86_64.rpm",
          "systemd-udev-249-77.oe2203sp3.x86_64.rpm",
          "systemd-resolved-249-77.oe2203sp3.x86_64.rpm",
          "systemd-networkd-249-77.oe2203sp3.x86_64.rpm",
          "systemd-debuginfo-249-77.oe2203sp3.x86_64.rpm",
          "systemd-devel-249-77.oe2203sp3.x86_64.rpm",
          "systemd-nspawn-249-77.oe2203sp3.x86_64.rpm",
          "systemd-container-249-77.oe2203sp3.x86_64.rpm",
          "systemd-debugsource-249-77.oe2203sp3.x86_64.rpm",
          "systemd-pam-249-77.oe2203sp3.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:22.03-LTS-SP3",
        "name": "systemd",
        "purl": "pkg:rpm/openEuler/systemd\u0026distro=openEuler-22.03-LTS-SP3"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "249-77.oe2203sp3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "High"
  },
  "details": "systemd is a system and service manager that runs as PID 1 and starts the rest of the system.\r\n\r\nSecurity Fix(es):\r\n\r\nCertain DNSSEC aspects of the DNS protocol (in RFC 4033, 4034, 4035, 6840, and related RFCs) allow remote attackers to cause a denial of service (CPU consumption) via one or more DNSSEC responses, aka the \u0026quot;KeyTrap\u0026quot; issue. One of the concerns is that, when there is a zone with many DNSKEY and RRSIG records, the protocol specification implies that an algorithm must evaluate all combinations of DNSKEY and RRSIG records.(CVE-2023-50387)\r\n\r\nThe Closest Encloser Proof aspect of the DNS protocol (in RFC 5155 when RFC 9276 guidance is skipped) allows remote attackers to cause a denial of service (CPU consumption for SHA-1 computations) via DNSSEC responses in a random subdomain attack, aka the \u0026quot;NSEC3\u0026quot; issue. The RFC 5155 specification implies that an algorithm must perform thousands of iterations of a hash function in certain situations.(CVE-2023-50868)",
  "id": "OESA-2024-1489",
  "modified": "2026-08-06T11:06:56Z",
  "published": "2024-04-26T11:06:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2024-1489"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-50387"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-50868"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "systemd security update",
  "upstream": [
    "CVE-2023-50387",
    "CVE-2023-50868"
  ]
}

CVE-2023-50387 (GCVE-0-2023-50387)

Vulnerability from cvelistv5 – Published: 2024-02-14 00:00 – Updated: 2025-11-04 18:20

Summary

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-05-08 17:27 UTC

CWE

n/a
CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

mitre mitre root Scorecard

References

36 references

URL	Tags
https://www.athene-center.de/aktuelles/key-trap
https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.1…
https://kb.isc.org/docs/cve-2023-50387
https://docs.powerdns.com/recursor/security-advis…
https://www.theregister.com/2024/02/13/dnssec_vul…
https://news.ycombinator.com/item?id=39367411
https://www.securityweek.com/keytrap-dns-attack-c…
https://www.isc.org/blogs/2024-bind-security-release/
https://news.ycombinator.com/item?id=39372384
https://gitlab.nic.cz/knot/knot-resolver/-/releas…
https://lists.thekelleys.org.uk/pipermail/dnsmasq…
https://msrc.microsoft.com/update-guide/vulnerabi…
https://access.redhat.com/security/cve/CVE-2023-50387
https://bugzilla.suse.com/show_bug.cgi?id=1219823
https://www.athene-center.de/fileadmin/content/PD…
http://www.openwall.com/lists/oss-security/2024/02/16/2	mailing-list
http://www.openwall.com/lists/oss-security/2024/02/16/3	mailing-list
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.debian.org/debian-lts-announce/2024…	mailing-list
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://security.netapp.com/advisory/ntap-2024030…
https://lists.debian.org/debian-lts-announce/2024…	mailing-list
https://lists.debian.org/debian-lts-announce/2024…
https://lists.debian.org/debian-lts-announce/2024…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…

Show details on NVD website

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To clipboard

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    "datePublished": "2024-02-14T00:00:00.000Z",
    "dateReserved": "2023-12-07T00:00:00.000Z",
    "dateUpdated": "2025-11-04T18:20:34.949Z",
    "state": "PUBLISHED"
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CVE-2023-50868 (GCVE-0-2023-50868)

Vulnerability from cvelistv5 – Published: 2024-02-14 00:00 – Updated: 2025-11-04 18:20

Summary

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-02-19 20:27 UTC

CWE

n/a
CWE-400 - Uncontrolled Resource Consumption

Assigner

mitre mitre root Scorecard

References

29 references

URL	Tags
https://nlnetlabs.nl/news/2024/Feb/13/unbound-1.1…
https://docs.powerdns.com/recursor/security-advis…
https://www.isc.org/blogs/2024-bind-security-release/
https://datatracker.ietf.org/doc/html/rfc5155
https://kb.isc.org/docs/cve-2023-50868
https://gitlab.nic.cz/knot/knot-resolver/-/releas…
https://lists.thekelleys.org.uk/pipermail/dnsmasq…
https://access.redhat.com/security/cve/CVE-2023-50868
https://bugzilla.suse.com/show_bug.cgi?id=1219826
http://www.openwall.com/lists/oss-security/2024/02/16/2	mailing-list
http://www.openwall.com/lists/oss-security/2024/02/16/3	mailing-list
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.debian.org/debian-lts-announce/2024…	mailing-list
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisory
https://security.netapp.com/advisory/ntap-2024030…
https://lists.debian.org/debian-lts-announce/2024…	mailing-list
https://lists.debian.org/debian-lts-announce/2024…
https://lists.debian.org/debian-lts-announce/2024…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…
https://lists.fedoraproject.org/archives/list/pac…

Show details on NVD website

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}

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.

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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

OESA-2024-1489 (CVE-2023-50387)

CVE-2023-50387 (GCVE-0-2023-50387)

CVE-2023-50868 (GCVE-0-2023-50868)

Tags

Sightings

Nomenclature

Related by attack behaviour