FKIE_CVE-2024-31083
Vulnerability from fkie_nvd - Published: 2024-04-05 12:15 - Updated: 2026-06-17 07:27
Severity
Summary
A use-after-free vulnerability was found in the ProcRenderAddGlyphs() function of Xorg servers. This issue occurs when AllocateGlyph() is called to store new glyphs sent by the client to the X server, potentially resulting in multiple entries pointing to the same non-refcounted glyphs. Consequently, ProcRenderAddGlyphs() may free a glyph, leading to a use-after-free scenario when the same glyph pointer is subsequently accessed. This flaw allows an authenticated attacker to execute arbitrary code on the system by sending a specially crafted request.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"affected": [
{
"affectedData": [
{
"collectionURL": "https://gitlab.freedesktop.org/xorg/xserver",
"defaultStatus": "unaffected",
"packageName": "xorg-x11-server",
"versions": [
{
"status": "affected",
"version": "21.1.12"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_els:6"
],
"defaultStatus": "affected",
"packageName": "tigervnc",
"product": "Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.1.0-25.el6_10.13",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7::client",
"cpe:/o:redhat:enterprise_linux:7::server",
"cpe:/o:redhat:enterprise_linux:7::computenode",
"cpe:/o:redhat:enterprise_linux:7::workstation"
],
"defaultStatus": "affected",
"packageName": "xorg-x11-server",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.20.4-29.el7_9",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7::client",
"cpe:/o:redhat:enterprise_linux:7::server",
"cpe:/o:redhat:enterprise_linux:7::computenode",
"cpe:/o:redhat:enterprise_linux:7::workstation"
],
"defaultStatus": "affected",
"packageName": "tigervnc",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.8.0-33.el7_9",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::appstream"
],
"defaultStatus": "affected",
"packageName": "tigervnc",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.13.1-2.el8_9.10",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::crb",
"cpe:/a:redhat:enterprise_linux:8::appstream"
],
"defaultStatus": "affected",
"packageName": "xorg-x11-server",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.20.11-23.el8_10",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::appstream"
],
"defaultStatus": "affected",
"packageName": "tigervnc",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.13.1-10.el8_10",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::appstream"
],
"defaultStatus": "affected",
"packageName": "xorg-x11-server-Xwayland",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:21.1.3-16.el8_10",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_tus:8.2::appstream",
"cpe:/a:redhat:rhel_e4s:8.2::appstream",
"cpe:/a:redhat:rhel_aus:8.2::appstream"
],
"defaultStatus": "affected",
"packageName": "tigervnc",
"product": "Red Hat Enterprise Linux 8.2 Advanced Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.9.0-15.el8_2.11",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_tus:8.2::appstream",
"cpe:/a:redhat:rhel_e4s:8.2::appstream",
"cpe:/a:redhat:rhel_aus:8.2::appstream"
],
"defaultStatus": "affected",
"packageName": "tigervnc",
"product": "Red Hat Enterprise Linux 8.2 Telecommunications Update Service",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.9.0-15.el8_2.11",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_tus:8.2::appstream",
"cpe:/a:redhat:rhel_e4s:8.2::appstream",
"cpe:/a:redhat:rhel_aus:8.2::appstream"
],
"defaultStatus": "affected",
"packageName": "tigervnc",
"product": "Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.9.0-15.el8_2.11",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:8.4::appstream",
"cpe:/a:redhat:rhel_tus:8.4::appstream",
"cpe:/a:redhat:rhel_aus:8.4::appstream"
],
"defaultStatus": "affected",
"packageName": "tigervnc",
"product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.11.0-8.el8_4.10",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:8.4::appstream",
"cpe:/a:redhat:rhel_tus:8.4::appstream",
"cpe:/a:redhat:rhel_aus:8.4::appstream"
],
"defaultStatus": "affected",
"packageName": "tigervnc",
"product": "Red Hat Enterprise Linux 8.4 Telecommunications Update Service",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.11.0-8.el8_4.10",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:8.4::appstream",
"cpe:/a:redhat:rhel_tus:8.4::appstream",
"cpe:/a:redhat:rhel_aus:8.4::appstream"
],
"defaultStatus": "affected",
"packageName": "tigervnc",
"product": "Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.11.0-8.el8_4.10",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus:8.6::appstream"
],
"defaultStatus": "affected",
"packageName": "tigervnc",
"product": "Red Hat Enterprise Linux 8.6 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.12.0-6.el8_6.11",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus:8.8::appstream"
],
"defaultStatus": "affected",
"packageName": "tigervnc",
"product": "Red Hat Enterprise Linux 8.8 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.12.0-15.el8_8.10",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::appstream"
],
"defaultStatus": "affected",
"packageName": "tigervnc",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.13.1-8.el9_4.3",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::appstream",
"cpe:/a:redhat:enterprise_linux:9::crb"
],
"defaultStatus": "affected",
"packageName": "xorg-x11-server-Xwayland",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:23.2.7-1.el9",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9::appstream",
"cpe:/a:redhat:enterprise_linux:9::crb"
],
"defaultStatus": "affected",
"packageName": "xorg-x11-server",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.20.11-26.el9",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.0::appstream"
],
"defaultStatus": "affected",
"packageName": "tigervnc",
"product": "Red Hat Enterprise Linux 9.0 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.11.0-22.el9_0.11",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_eus:9.2::appstream"
],
"defaultStatus": "affected",
"packageName": "tigervnc",
"product": "Red Hat Enterprise Linux 9.2 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:1.12.0-14.el9_2.8",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "unaffected",
"packageName": "tigervnc",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "unaffected",
"packageName": "xorg-x11-server",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:10"
],
"defaultStatus": "unaffected",
"packageName": "xorg-x11-server-Xwayland",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "unknown",
"packageName": "xorg-x11-server",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
}
],
"source": "secalert@redhat.com"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A use-after-free vulnerability was found in the ProcRenderAddGlyphs() function of Xorg servers. This issue occurs when AllocateGlyph() is called to store new glyphs sent by the client to the X server, potentially resulting in multiple entries pointing to the same non-refcounted glyphs. Consequently, ProcRenderAddGlyphs() may free a glyph, leading to a use-after-free scenario when the same glyph pointer is subsequently accessed. This flaw allows an authenticated attacker to execute arbitrary code on the system by sending a specially crafted request."
},
{
"lang": "es",
"value": "Se encontr\u00f3 una vulnerabilidad de use-after-free en la funci\u00f3n ProcRenderAddGlyphs() de los servidores Xorg. Este problema ocurre cuando se llama a AllocateGlyph() para almacenar nuevos glifos enviados por el cliente al servidor X, lo que potencialmente resulta en m\u00faltiples entradas que apuntan a los mismos glifos no recontados. En consecuencia, ProcRenderAddGlyphs() puede liberar un glifo, lo que lleva a un escenario de use-after-free cuando posteriormente se accede al mismo puntero de glifo. Esta falla permite que un atacante autenticado ejecute c\u00f3digo arbitrario en el sistema enviando una solicitud especialmente manipulada."
}
],
"id": "CVE-2024-31083",
"lastModified": "2026-06-17T07:27:45.977",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "secalert@redhat.com",
"type": "Secondary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-31083",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2024-04-05T18:36:25.769082Z",
"version": "2.0.3"
}
}
]
},
"published": "2024-04-05T12:15:37.577",
"references": [
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2024:1785"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2024:2036"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2024:2037"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2024:2038"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2024:2039"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2024:2040"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2024:2041"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2024:2042"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2024:2080"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2024:2616"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2024:3258"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2024:3261"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2024:3343"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2024:9093"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2024:9122"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/errata/RHSA-2025:12751"
},
{
"source": "secalert@redhat.com",
"url": "https://access.redhat.com/security/cve/CVE-2024-31083"
},
{
"source": "secalert@redhat.com",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2272000"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.openwall.com/lists/oss-security/2024/04/03/13"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.openwall.com/lists/oss-security/2024/04/12/10"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://access.redhat.com/errata/RHSA-2024:1785"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2024:2036"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2024:2037"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2024:2038"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2024:2039"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2024:2040"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2024:2041"
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{
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"url": "https://access.redhat.com/errata/RHSA-2024:2042"
},
{
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"url": "https://access.redhat.com/errata/RHSA-2024:2080"
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{
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{
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{
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},
{
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"url": "https://access.redhat.com/errata/RHSA-2024:3343"
},
{
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"url": "https://access.redhat.com/security/cve/CVE-2024-31083"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2272000"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.debian.org/debian-lts-announce/2024/04/msg00009.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6TF7FZXOKHIKPZXYIMSQXKVH7WITKV3V/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EBLQJIAXEDMEGRGZMSH7CWUJHSVKUWLV/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P73U4DAAWLFZAPD75GLXTGMSTTQWW5AP/"
}
],
"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-416"
}
],
"source": "secalert@redhat.com",
"type": "Secondary"
}
]
}
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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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