Vulnerability-Lookup

JVNDB-2026-000070

Vulnerability from jvndb - Published: 2026-05-11 09:20 - Updated:2026-05-11 09:20

Severity

3.3 (Low) - cvssV3_0 - CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Summary

libXpm vulnerable to out-of-bounds read

Details

libXpm provided by X.Org Foundation incorrectly handles malformed XPM files, leading to an out-of-bounds read vulnerability.

Out-of-bounds read (CWE-125) - CVE-2026-4367

Naoki Wakamatsu reported this vulnerability to IPA. JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

References

Type

URL

	JVN	https://jvn.jp/en/jp/JVN18013369/index.html
	CVE	https://www.cve.org/CVERecord?id=CVE-2026-4367
	No Mapping(CWE-Other)	https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html

Impacted products

Vendor

Product

X.Org Foundation

libxpm

Show details on JVN DB website

JSON

To clipboard

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  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000070.html",
  "dc:date": "2026-05-11T18:20+09:00",
  "dcterms:issued": "2026-05-11T18:20+09:00",
  "dcterms:modified": "2026-05-11T18:20+09:00",
  "description": "libXpm provided by X.Org Foundation incorrectly handles malformed XPM files, leading to an out-of-bounds read vulnerability.\u003ca href=\u0027https://cwe.mitre.org/data/definitions/125.html\u0027 target=\u0027_blank\u0027\u003e\u003c/a\u003e\u003cul\u003e\u003cli\u003eOut-of-bounds read (CWE-125) - CVE-2026-4367\u003c/li\u003e\u003c/ul\u003eNaoki Wakamatsu reported this vulnerability to IPA.\r\nJPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.",
  "link": "https://jvndb.jvn.jp/en/contents/2026/JVNDB-2026-000070.html",
  "sec:cpe": {
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    "@product": "libxpm",
    "@vendor": "X.Org Foundation",
    "@version": "2.2"
  },
  "sec:cvss": {
    "@score": "3.3",
    "@severity": "Low",
    "@type": "Base",
    "@vector": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
    "@version": "3.0"
  },
  "sec:identifier": "JVNDB-2026-000070",
  "sec:references": [
    {
      "#text": "https://jvn.jp/en/jp/JVN18013369/index.html",
      "@id": "JVN#18013369",
      "@source": "JVN"
    },
    {
      "#text": "https://www.cve.org/CVERecord?id=CVE-2026-4367",
      "@id": "CVE-2026-4367",
      "@source": "CVE"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-Other",
      "@title": "No Mapping(CWE-Other)"
    }
  ],
  "title": "libXpm vulnerable to out-of-bounds read"
}

CVE-2026-4367 (GCVE-0-2026-4367)

Vulnerability from cvelistv5 – Published: 2026-06-16 16:50 – Updated: 2026-07-28 09:33

Title

Libxpm: libxpm: denial of service via out-of-bounds read in xpm file parsing

Summary

A flaw was found in libXpm. A local user with low privileges could exploit an Out-of-Bounds Read vulnerability in the `xpmNextWord()` function by processing a specially crafted or very small XPM (X PixMap) image file. This improper validation of file boundaries can cause an internal pointer to read beyond the file's end, leading to application crashes and Denial of Service conditions.

Severity

5.5 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-16 18:45 UTC

CWE

CWE-125 - Out-of-bounds Read

Assigner

redhat redhat root

References

7 references

URL	Tags
https://access.redhat.com/errata/RHSA-2026:30354	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:47072	vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-4367	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2448984	issue-trackingx_refsource_REDHAT
https://gitlab.freedesktop.org/xorg/lib/libxpm/-/…
https://seclists.org/oss-sec/2026/q2/192
http://www.openwall.com/lists/oss-security/2026/04/21/3

Impacted products

7 products

Vendor	Product	Version
Red Hat	Red Hat Hardened Images	Unaffected: 3.5.17-7.2.hum1 , < * (rpm) cpe:/a:redhat:hummingbird:1
Red Hat	Red Hat Hardened Images	Unaffected: 3.5.19-4.hum1 , < * (rpm) cpe:/a:redhat:hummingbird:1
Red Hat	Red Hat Enterprise Linux 10	cpe:/o:redhat:enterprise_linux:10
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

2026-04-21 13:26

Credits

Red Hat would like to thank Naoki Wakamatsu (JPCERT/CC Vulnerability Coordination Group) 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.

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.
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.