RHSA-2026:67635
Vulnerability from csaf_redhat - Published: 2026-09-15 18:29 - Updated: 2026-09-21 11:43Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update
Severity
Important
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
gd:
* gd-2.3.3-22.1.hum1 (aarch64, x86_64)
* gd-devel-2.3.3-22.1.hum1 (aarch64, x86_64)
* gd-progs-2.3.3-22.1.hum1 (aarch64, x86_64)
* gd-2.3.3-22.1.hum1.src (src)
Security Fix(es):
gd:
* CVE-2026-9672
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 libgd. Processing a specially crafted GIF file allows a remote attacker to trigger a buffer overflow, resulting in an application crash and a denial of service. Arbitrary code execution is possible in theory, but considered highly unlikely because standard image decompression and pixel manipulation generally destroy the exploit payload.
8.1 (High)
Affected products
Fixed
7 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: Red Hat Hardened Images:gd-0:2.3.3-22.1.hum1@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:gd-0:2.3.3-22.1.hum1@src | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:gd-0:2.3.3-22.1.hum1@x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:gd-devel-0:2.3.3-22.1.hum1@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:gd-devel-0:2.3.3-22.1.hum1@x86_64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:gd-progs-0:2.3.3-22.1.hum1@aarch64 | — |
Vendor Fix
fix
Workaround
|
|
| Unresolved product id: Red Hat Hardened Images:gd-progs-0:2.3.3-22.1.hum1@x86_64 | — |
Vendor Fix
fix
Workaround
|
Threats
Impact
Important
References
10 references
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"cwe": {
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"name": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)"
},
"discovery_date": "2026-08-04T00:00:00+00:00",
"ids": [
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"text": "A flaw was found in libgd. Processing a specially crafted GIF file allows a remote attacker to trigger a buffer overflow, resulting in an application crash and a denial of service. Arbitrary code execution is possible in theory, but considered highly unlikely because standard image decompression and pixel manipulation generally destroy the exploit payload.",
"title": "Vulnerability description"
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"text": "libgd: buffer overflow when processing specially crafted GIF file",
"title": "Vulnerability summary"
},
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"text": "To exploit this flaw, a remote attacker needs to be able to process a crafted GIF file with an application linked to the libgd library. Successful exploitation can result in an application crash, leading to a denial of service, or in arbitrary code execution. However, arbitrary code execution is highly unlikely because standard image decompression and pixel manipulation generally destroy the exploit payload.\n\nFor these reasons, this vulnerability has been rated with an important severity.\n\nDefault Red Hat Enterprise Linux security features, including SELinux enforcement, Address Space Layout Randomization (ASLR) and NX (No-Execute) memory protection, significantly increase the difficulty of achieving arbitrary code execution, limiting the impact of this vulnerability.",
"title": "Statement"
},
{
"category": "general",
"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.",
"title": "CVSS score applicability"
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{
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"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-9672"
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"url": "https://github.com/php/php-src/commit/b590f0380fda26ed180874a0255f0be078434315"
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"release_date": "2026-07-26T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-15T18:29:54+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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"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:67635"
},
{
"category": "workaround",
"details": "Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.",
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"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"Red Hat Hardened Images:gd-0:2.3.3-22.1.hum1@aarch64",
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],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "libgd: buffer overflow when processing specially crafted GIF file"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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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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.
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.
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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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