Vulnerability-Lookup

FKIE_CVE-2023-4156

Vulnerability from fkie_nvd - Published: 2023-09-25 18:15 - Updated: 2026-06-17 06:37

Severity

4.4 (Medium) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Summary

A heap out-of-bounds read flaw was found in builtin.c in the gawk package. This issue may lead to a crash and could be used to read sensitive information.

References

URL	Tags
secalert@redhat.com	https://access.redhat.com/security/cve/CVE-2023-4156	Exploit, Issue Tracking, Release Notes, Third Party Advisory
secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=2215930	Exploit, Issue Tracking, Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://access.redhat.com/security/cve/CVE-2023-4156	Exploit, Issue Tracking, Release Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://bugzilla.redhat.com/show_bug.cgi?id=2215930	Exploit, Issue Tracking, Release Notes, Third Party Advisory

Impacted products

Vendor	Product	Version
gnu	gawk	*
redhat	enterprise_linux	6.0
redhat	enterprise_linux	7.0
fedoraproject	fedora	38

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "gawk",
          "vendor": "n/a",
          "versions": [
            {
              "status": "unaffected",
              "version": "5.1.1"
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          "cpes": [
            "cpe:/o:redhat:enterprise_linux:6"
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          "defaultStatus": "unknown",
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          "product": "Red Hat Enterprise Linux 6",
          "vendor": "Red Hat"
        },
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          "cpes": [
            "cpe:/o:redhat:enterprise_linux:7"
          ],
          "defaultStatus": "affected",
          "packageName": "gawk",
          "product": "Red Hat Enterprise Linux 7",
          "vendor": "Red Hat"
        },
        {
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          "cpes": [
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          "packageName": "gawk",
          "product": "Red Hat Enterprise Linux 8",
          "vendor": "Red Hat"
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          "product": "Red Hat Enterprise Linux 9",
          "vendor": "Red Hat"
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          "defaultStatus": "affected",
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          "product": "Fedora",
          "vendor": "Fedora"
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      "source": "secalert@redhat.com"
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    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 un error de lectura fuera de l\u00edmites en el paquete gawk de buildin.c. Este problema puede provocar un bloqueo y podr\u00eda utilizarse para leer informaci\u00f3n confidencial."
    }
  ],
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  "lastModified": "2026-06-17T06:37:11.890",
  "metrics": {
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      "type": "Primary"
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  ]
}

CVE-2023-4156 (GCVE-0-2023-4156)

Vulnerability from cvelistv5 – Published: 2023-09-25 17:20 – Updated: 2024-09-24 15:36

Title

Heap out of bound read in builtin.c

Summary

A heap out-of-bounds read flaw was found in builtin.c in the gawk package. This issue may lead to a crash and could be used to read sensitive information.

Severity

4.4 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-24 15:36 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

redhat redhat root Scorecard

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2023-4156	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2215930	issue-trackingx_refsource_REDHAT

Impacted products

6 products

Vendor	Product	Version
n/a	gawk	Unaffected: 5.1.1
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
Fedora	Fedora

Date Public

2023-06-19 00:00

Credits

Red Hat would like to thank Jiongchi Yu for reporting this issue.

Show details on NVD website

JSON

To clipboard

{
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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.

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FKIE_CVE-2023-4156

CVE-2023-4156 (GCVE-0-2023-4156)

Tags

Sightings

Nomenclature

Related by attack behaviour