RHSA-2026:30354
Vulnerability from csaf_redhat - Published: 2026-06-26 19:55 - Updated: 2026-07-02 17:17Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
Severity
Moderate
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
libXpm:
* libXpm-3.5.17-7.2.hum1 (aarch64, x86_64)
* libXpm-devel-3.5.17-7.2.hum1 (aarch64, x86_64)
* libXpm-3.5.17-7.2.hum1.src (src)
Security Fix(es):
libXpm:
* CVE-2026-4367
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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.
5.5 (Medium)
Affected products
Fixed
3 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:libxpm-main@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:libxpm-main@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:libxpm-main@x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Moderate
References
11 references
Acknowledgments
JPCERT/CC Vulnerability Coordination Group
Naoki Wakamatsu
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"text": "This update includes the following RPMs:\n\nlibXpm:\n * libXpm-3.5.17-7.2.hum1 (aarch64, x86_64)\n * libXpm-devel-3.5.17-7.2.hum1 (aarch64, x86_64)\n * libXpm-3.5.17-7.2.hum1.src (src)\n\nSecurity Fix(es):\n\nlibXpm:\n * CVE-2026-4367",
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"vulnerabilities": [
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"acknowledgments": [
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"names": [
"Naoki Wakamatsu"
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"organization": "JPCERT/CC Vulnerability Coordination Group"
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"cve": "CVE-2026-4367",
"cwe": {
"id": "CWE-125",
"name": "Out-of-bounds Read"
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"discovery_date": "2026-03-19T10:09:18.646000+00:00",
"ids": [
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"text": "2448984"
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"notes": [
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"category": "description",
"text": "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\u0027s end, leading to application crashes and Denial of Service conditions.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "libXpm: libXpm: Denial of Service via out-of-bounds read in XPM file parsing",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "The vulnerability is assessed as Medium severity due to its impact being limited to availability. While exploitation requires local access and low privileges, it does not require user interaction. Successful exploitation can cause applications processing XPM files to crash, which may affect batch processing systems or graphical applications. The absence of confidentiality and integrity impact reduces the overall severity, but the ease of triggering the issue still presents a reliability concern.",
"title": "Statement"
},
{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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{
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"summary": "https://www.cve.org/CVERecord?id=CVE-2026-4367",
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{
"category": "external",
"summary": "https://gitlab.freedesktop.org/xorg/lib/libxpm/-/commit/5448e1bd",
"url": "https://gitlab.freedesktop.org/xorg/lib/libxpm/-/commit/5448e1bd"
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{
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"summary": "https://seclists.org/oss-sec/2026/q2/192",
"url": "https://seclists.org/oss-sec/2026/q2/192"
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"release_date": "2026-04-21T13:26:00+00:00",
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"date": "2026-06-26T19:55:44+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
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"scores": [
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"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"Red Hat Hardened Images:libxpm-main@aarch64",
"Red Hat Hardened Images:libxpm-main@src",
"Red Hat Hardened Images:libxpm-main@x86_64"
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}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "libXpm: libXpm: Denial of Service via out-of-bounds read in XPM file parsing"
}
]
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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