RHSA-2026:12781
Vulnerability from csaf_redhat - Published: 2026-05-01 15:45 - Updated: 2026-05-01 16:43Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Severity
Moderate
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs:
capstone:
* capstone-5.0.7-0.1.hum1 (aarch64, x86_64)
* capstone-devel-5.0.7-0.1.hum1 (aarch64, x86_64)
* capstone-java-5.0.7-0.1.hum1 (noarch)
* capstone-static-5.0.7-0.1.hum1 (aarch64, x86_64)
* python3-capstone-5.0.7-0.1.hum1 (noarch)
* capstone-5.0.7-0.1.hum1.src (src)
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 Capstone, a disassembly framework. A local attacker could exploit a heap buffer overflow vulnerability by providing a specially crafted skipdata callback. This flaw occurs because the skipdata length is not properly bounds-checked, which may allow an attacker to write beyond allocated memory, potentially leading to a denial of service (DoS) or arbitrary code execution.
6.1 (Medium)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://images.redhat.com/
https://access.redhat.com/errata/RHSA-2026:12781
A flaw was found in Capstone, a disassembly framework. An unchecked return value from vsnprintf within the SStream_concat function allows a malicious input to manipulate the internal stream index. This can lead to a stack buffer underflow or overflow, potentially enabling a local attacker to achieve information disclosure, alter data, or cause a denial of service.
7.3 (High)
Vendor Fix
For details on how to apply this update, which includes the changes described in this advisory, refer to:
https://images.redhat.com/
https://access.redhat.com/errata/RHSA-2026:12781
References
{
"document": {
"aggregate_severity": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"text": "Moderate"
},
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "en",
"notes": [
{
"category": "summary",
"text": "An update for Red Hat Hardened Images RPMs is now available.",
"title": "Topic"
},
{
"category": "general",
"text": "This update includes the following RPMs:\n\ncapstone:\n * capstone-5.0.7-0.1.hum1 (aarch64, x86_64)\n * capstone-devel-5.0.7-0.1.hum1 (aarch64, x86_64)\n * capstone-java-5.0.7-0.1.hum1 (noarch)\n * capstone-static-5.0.7-0.1.hum1 (aarch64, x86_64)\n * python3-capstone-5.0.7-0.1.hum1 (noarch)\n * capstone-5.0.7-0.1.hum1.src (src)",
"title": "Details"
},
{
"category": "legal_disclaimer",
"text": "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.",
"title": "Terms of Use"
}
],
"publisher": {
"category": "vendor",
"contact_details": "https://access.redhat.com/security/team/contact/",
"issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
"name": "Red Hat Product Security",
"namespace": "https://www.redhat.com"
},
"references": [
{
"category": "self",
"summary": "https://access.redhat.com/errata/RHSA-2026:12781",
"url": "https://access.redhat.com/errata/RHSA-2026:12781"
},
{
"category": "external",
"summary": "https://images.redhat.com/",
"url": "https://images.redhat.com/"
},
{
"category": "external",
"summary": "https://access.redhat.com/security/cve/CVE-2025-67873",
"url": "https://access.redhat.com/security/cve/CVE-2025-67873"
},
{
"category": "external",
"summary": "https://access.redhat.com/security/updates/classification/",
"url": "https://access.redhat.com/security/updates/classification/"
},
{
"category": "external",
"summary": "https://access.redhat.com/security/cve/CVE-2025-68114",
"url": "https://access.redhat.com/security/cve/CVE-2025-68114"
},
{
"category": "self",
"summary": "Canonical URL",
"url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_12781.json"
}
],
"title": "Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update",
"tracking": {
"current_release_date": "2026-05-01T16:43:52+00:00",
"generator": {
"date": "2026-05-01T16:43:52+00:00",
"engine": {
"name": "Red Hat SDEngine",
"version": "4.7.7"
}
},
"id": "RHSA-2026:12781",
"initial_release_date": "2026-05-01T15:45:02+00:00",
"revision_history": [
{
"date": "2026-05-01T15:45:02+00:00",
"number": "1",
"summary": "Initial version"
},
{
"date": "2026-05-01T16:34:24+00:00",
"number": "2",
"summary": "Last updated version"
},
{
"date": "2026-05-01T16:43:52+00:00",
"number": "3",
"summary": "Last generated version"
}
],
"status": "final",
"version": "3"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Red Hat Hardened Images",
"product": {
"name": "Red Hat Hardened Images",
"product_id": "Red Hat Hardened Images",
"product_identification_helper": {
"cpe": "cpe:/a:redhat:hummingbird:1"
}
}
}
],
"category": "product_family",
"name": "Red Hat Hardened Images"
},
{
"branches": [
{
"category": "product_version",
"name": "capstone-main@aarch64",
"product": {
"name": "capstone-main@aarch64",
"product_id": "capstone-main@aarch64",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/capstone@5.0.7-0.1.hum1?arch=aarch64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-aarch64-rpms"
}
}
}
],
"category": "architecture",
"name": "aarch64"
},
{
"branches": [
{
"category": "product_version",
"name": "capstone-main@src",
"product": {
"name": "capstone-main@src",
"product_id": "capstone-main@src",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/capstone@5.0.7-0.1.hum1?arch=src\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-source-rpms"
}
}
}
],
"category": "architecture",
"name": "src"
},
{
"branches": [
{
"category": "product_version",
"name": "capstone-main@x86_64",
"product": {
"name": "capstone-main@x86_64",
"product_id": "capstone-main@x86_64",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/capstone@5.0.7-0.1.hum1?arch=x86_64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-x86_64-rpms"
}
}
}
],
"category": "architecture",
"name": "x86_64"
},
{
"branches": [
{
"category": "product_version",
"name": "capstone-main@noarch",
"product": {
"name": "capstone-main@noarch",
"product_id": "capstone-main@noarch",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/capstone-java@5.0.7-0.1.hum1?arch=noarch\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-x86_64-rpms"
}
}
}
],
"category": "architecture",
"name": "noarch"
}
],
"category": "vendor",
"name": "Red Hat"
}
],
"relationships": [
{
"category": "default_component_of",
"full_product_name": {
"name": "capstone-main@aarch64 as a component of Red Hat Hardened Images",
"product_id": "Red Hat Hardened Images:capstone-main@aarch64"
},
"product_reference": "capstone-main@aarch64",
"relates_to_product_reference": "Red Hat Hardened Images"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "capstone-main@noarch as a component of Red Hat Hardened Images",
"product_id": "Red Hat Hardened Images:capstone-main@noarch"
},
"product_reference": "capstone-main@noarch",
"relates_to_product_reference": "Red Hat Hardened Images"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "capstone-main@src as a component of Red Hat Hardened Images",
"product_id": "Red Hat Hardened Images:capstone-main@src"
},
"product_reference": "capstone-main@src",
"relates_to_product_reference": "Red Hat Hardened Images"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "capstone-main@x86_64 as a component of Red Hat Hardened Images",
"product_id": "Red Hat Hardened Images:capstone-main@x86_64"
},
"product_reference": "capstone-main@x86_64",
"relates_to_product_reference": "Red Hat Hardened Images"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2025-67873",
"cwe": {
"id": "CWE-122",
"name": "Heap-based Buffer Overflow"
},
"discovery_date": "2025-12-17T22:01:40.695840+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2423419"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Capstone, a disassembly framework. A local attacker could exploit a heap buffer overflow vulnerability by providing a specially crafted skipdata callback. This flaw occurs because the skipdata length is not properly bounds-checked, which may allow an attacker to write beyond allocated memory, potentially leading to a denial of service (DoS) or arbitrary code execution.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "capstone: Capstone: Heap buffer overflow via skipdata callback allows denial of service or arbitrary code execution.",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is rated Moderate because a heap buffer overflow in the Capstone disassembly framework can be exploited by a local attacker providing a specially crafted skipdata callback, potentially leading to denial of service or arbitrary code execution. Exploitation requires local access and user interaction.",
"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"
}
],
"product_status": {
"fixed": [
"Red Hat Hardened Images:capstone-main@aarch64",
"Red Hat Hardened Images:capstone-main@noarch",
"Red Hat Hardened Images:capstone-main@src",
"Red Hat Hardened Images:capstone-main@x86_64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-67873"
},
{
"category": "external",
"summary": "RHBZ#2423419",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2423419"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-67873",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-67873"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-67873",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-67873"
},
{
"category": "external",
"summary": "https://github.com/capstone-engine/capstone/commit/cbef767ab33b82166d263895f24084b75b316df3",
"url": "https://github.com/capstone-engine/capstone/commit/cbef767ab33b82166d263895f24084b75b316df3"
},
{
"category": "external",
"summary": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-hj6g-v545-v7jg",
"url": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-hj6g-v545-v7jg"
}
],
"release_date": "2025-12-17T21:12:13.739000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-05-01T15:45:02+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/",
"product_ids": [
"Red Hat Hardened Images:capstone-main@aarch64",
"Red Hat Hardened Images:capstone-main@noarch",
"Red Hat Hardened Images:capstone-main@src",
"Red Hat Hardened Images:capstone-main@x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:12781"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:H",
"version": "3.1"
},
"products": [
"Red Hat Hardened Images:capstone-main@aarch64",
"Red Hat Hardened Images:capstone-main@noarch",
"Red Hat Hardened Images:capstone-main@src",
"Red Hat Hardened Images:capstone-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "capstone: Capstone: Heap buffer overflow via skipdata callback allows denial of service or arbitrary code execution."
},
{
"cve": "CVE-2025-68114",
"cwe": {
"id": "CWE-787",
"name": "Out-of-bounds Write"
},
"discovery_date": "2025-12-17T22:01:27.504008+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2423416"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Capstone, a disassembly framework. An unchecked return value from vsnprintf within the SStream_concat function allows a malicious input to manipulate the internal stream index. This can lead to a stack buffer underflow or overflow, potentially enabling a local attacker to achieve information disclosure, alter data, or cause a denial of service.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "capstone: Capstone: Memory corruption via unchecked vsnprintf return",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability is rated Moderate as an unchecked `vsnprintf` return in Capstone\u0027s `SStream_concat` function can lead to stack buffer underflow or overflow. Exploitation requires local access and user interaction. This affects Capstone and other components in Red Hat Enterprise Linux, OpenShift Container Platform, and Community Projects.",
"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"
}
],
"product_status": {
"fixed": [
"Red Hat Hardened Images:capstone-main@aarch64",
"Red Hat Hardened Images:capstone-main@noarch",
"Red Hat Hardened Images:capstone-main@src",
"Red Hat Hardened Images:capstone-main@x86_64"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-68114"
},
{
"category": "external",
"summary": "RHBZ#2423416",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2423416"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-68114",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68114"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-68114",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68114"
},
{
"category": "external",
"summary": "https://github.com/capstone-engine/capstone/commit/2c7797182a1618be12017d7d41e0b6581d5d529e",
"url": "https://github.com/capstone-engine/capstone/commit/2c7797182a1618be12017d7d41e0b6581d5d529e"
},
{
"category": "external",
"summary": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-85f5-6xr3-q76r",
"url": "https://github.com/capstone-engine/capstone/security/advisories/GHSA-85f5-6xr3-q76r"
}
],
"release_date": "2025-12-17T21:14:31.226000+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-05-01T15:45:02+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/",
"product_ids": [
"Red Hat Hardened Images:capstone-main@aarch64",
"Red Hat Hardened Images:capstone-main@noarch",
"Red Hat Hardened Images:capstone-main@src",
"Red Hat Hardened Images:capstone-main@x86_64"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:12781"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.3,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"products": [
"Red Hat Hardened Images:capstone-main@aarch64",
"Red Hat Hardened Images:capstone-main@noarch",
"Red Hat Hardened Images:capstone-main@src",
"Red Hat Hardened Images:capstone-main@x86_64"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "capstone: Capstone: Memory corruption via unchecked vsnprintf return"
}
]
}
Loading…
Loading…
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.
Loading…
Loading…