Vulnerability-Lookup

CVE-2023-5156 (GCVE-0-2023-5156)

Vulnerability from cvelistv5 – Published: 2023-09-25 15:55 – Updated: 2025-12-18 15:38

Title

Glibc: dos due to memory leak in getaddrinfo.c

Summary

A flaw was found in the GNU C Library. A recent fix for CVE-2023-4806 introduced the potential for a memory leak, which may result in an application crash.

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 (v2.0.3)

CWE

CWE-401 - Missing Release of Memory after Effective Lifetime

Assigner

redhat

References

9 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2023-5156	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2240541	issue-trackingx_refsource_REDHAT
https://sourceware.org/bugzilla/show_bug.cgi?id=30884
https://sourceware.org/git/?p=glibc.git;a=commitd…
http://www.openwall.com/lists/oss-security/2023/10/03/4	x_transferred
http://www.openwall.com/lists/oss-security/2023/10/03/5	x_transferred
http://www.openwall.com/lists/oss-security/2023/10/03/6	x_transferred
http://www.openwall.com/lists/oss-security/2023/10/03/8	x_transferred
https://security.gentoo.org/glsa/202402-01	x_transferred

Impacted products

4 products

Vendor	Product	Version
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8	cpe:/o:redhat:enterprise_linux:8
Red Hat	Red Hat Enterprise Linux 9	cpe:/o:redhat:enterprise_linux:9

Date Public

2023-09-25 00:00

Credits

Red Hat would like to thank Romain Geissler for reporting this issue.

Show details on NVD website

JSON

To clipboard

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WID-SEC-W-2023-2439

Vulnerability from csaf_certbund - Published: 2023-09-25 22:00 - Updated: 2024-02-01 23:00

Summary

GNU libc: Schwachstelle ermöglicht Denial of Service

Severity

Niedrig

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: Die GNU libc ist die Basis C Bibliothek unter Linux sowie anderen Unix-Betriebssystemen, welche die Systemaufrufe sowie Basisfunktionalität bereitstellt.

Angriff: Ein entfernter, anonymer Angreifer kann eine Schwachstelle in GNU libc ausnutzen, um einen Denial of Service Angriff durchzuführen.

Betroffene Betriebssysteme: - UNIX - Linux - MacOS X - Windows

CVE-2023-5156

Es existiert eine Schwachstelle in GNU libc. Ein kürzlicher Fix für eine andere Schwachstelle ist unzureichend und kann dadurch zu einem Absturz führen. Ein entfernter, anonymer Angreifer kann diese Schwachstelle ausnutzen, um einen Denial of Service Zustand herzustellen.

Affected products

Known affected 2 products

Product	Identifier	Version	Remediation
Ubuntu Linux Ubuntu	`cpe:/o:canonical:ubuntu_linux:-`	—
Gentoo Linux Gentoo	`cpe:/o:gentoo:linux:-`	—

References

6 references

URL	Category
https://wid.cert-bund.de/.well-known/csaf/white/2…	self
https://wid.cert-bund.de/portal/wid/securityadvis…	self
https://github.com/advisories/GHSA-m7p3-g2hx-xfc3	external
https://ubuntu.com/security/notices/USN-6541-1	external
https://ubuntu.com/security/notices/USN-6541-2	external
https://security.gentoo.org/glsa/202402-01	external

JSON

To clipboard

{
  "document": {
    "aggregate_severity": {
      "text": "niedrig"
    },
    "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": "Die GNU libc ist die Basis C Bibliothek unter Linux sowie anderen Unix-Betriebssystemen, welche die Systemaufrufe sowie Basisfunktionalit\u00e4t bereitstellt.",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in GNU libc ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- UNIX\n- Linux\n- MacOS X\n- Windows",
        "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-2023-2439 - CSAF Version",
        "url": "https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2439.json"
      },
      {
        "category": "self",
        "summary": "WID-SEC-2023-2439 - Portal Version",
        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-2439"
      },
      {
        "category": "external",
        "summary": "Github Security Advisory vom 2023-09-25",
        "url": "https://github.com/advisories/GHSA-m7p3-g2hx-xfc3"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6541-1 vom 2023-12-07",
        "url": "https://ubuntu.com/security/notices/USN-6541-1"
      },
      {
        "category": "external",
        "summary": "Ubuntu Security Notice USN-6541-2 vom 2024-01-10",
        "url": "https://ubuntu.com/security/notices/USN-6541-2"
      },
      {
        "category": "external",
        "summary": "Gentoo Linux Security Advisory GLSA-202402-01 vom 2024-02-02",
        "url": "https://security.gentoo.org/glsa/202402-01"
      }
    ],
    "source_lang": "en-US",
    "title": "GNU libc: Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
      "current_release_date": "2024-02-01T23:00:00.000+00:00",
      "generator": {
        "date": "2024-08-15T17:58:48.957+00:00",
        "engine": {
          "name": "BSI-WID",
          "version": "1.3.5"
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      "id": "WID-SEC-W-2023-2439",
      "initial_release_date": "2023-09-25T22:00:00.000+00:00",
      "revision_history": [
        {
          "date": "2023-09-25T22:00:00.000+00:00",
          "number": "1",
          "summary": "Initiale Fassung"
        },
        {
          "date": "2023-12-07T23:00:00.000+00:00",
          "number": "2",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2024-01-10T23:00:00.000+00:00",
          "number": "3",
          "summary": "Neue Updates von Ubuntu aufgenommen"
        },
        {
          "date": "2024-02-01T23:00:00.000+00:00",
          "number": "4",
          "summary": "Neue Updates von Gentoo aufgenommen"
        }
      ],
      "status": "final",
      "version": "4"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_name",
            "name": "Gentoo Linux",
            "product": {
              "name": "Gentoo Linux",
              "product_id": "T012167",
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                "cpe": "cpe:/o:gentoo:linux:-"
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              "product_id": "T030064",
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                "cpe": "cpe:/a:gnu:glibc:2.39"
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        "category": "vendor",
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        "branches": [
          {
            "category": "product_name",
            "name": "Ubuntu Linux",
            "product": {
              "name": "Ubuntu Linux",
              "product_id": "T000126",
              "product_identification_helper": {
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              }
            }
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        "category": "vendor",
        "name": "Ubuntu"
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  "vulnerabilities": [
    {
      "cve": "CVE-2023-5156",
      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in GNU libc. Ein k\u00fcrzlicher Fix f\u00fcr eine andere Schwachstelle ist unzureichend und kann dadurch zu einem Absturz f\u00fchren. Ein entfernter, anonymer Angreifer kann diese Schwachstelle ausnutzen, um einen Denial of Service Zustand herzustellen."
        }
      ],
      "product_status": {
        "known_affected": [
          "T000126",
          "T012167"
        ]
      },
      "release_date": "2023-09-25T22:00:00.000+00:00",
      "title": "CVE-2023-5156"
    }
  ]
}

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.

Action not permitted

CVE-2023-5156 (GCVE-0-2023-5156)

WID-SEC-W-2023-2439

Tags

Sightings

Nomenclature