CVE-2024-31083
Status: DeferredHigh (7.8)—
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.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Base score: 7.8
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 1.86%
- Percentile among all scored CVEs: 79
- Score date: 10/6/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (1)
⚠ AI-inferred from the description — NVD hasn't analyzed this CVE yet, these aren't verified CPEs.
CWEs
- CWE-416
References
- https://access.redhat.com/errata/RHSA-2024:1785
- https://access.redhat.com/errata/RHSA-2024:2036
- https://access.redhat.com/errata/RHSA-2024:2037
- https://access.redhat.com/errata/RHSA-2024:2038
- https://access.redhat.com/errata/RHSA-2024:2039
- https://access.redhat.com/errata/RHSA-2024:2040
- https://access.redhat.com/errata/RHSA-2024:2041
- https://access.redhat.com/errata/RHSA-2024:2042
- https://access.redhat.com/errata/RHSA-2024:2080
- https://access.redhat.com/errata/RHSA-2024:2616
- https://access.redhat.com/errata/RHSA-2024:3258
- https://access.redhat.com/errata/RHSA-2024:3261
- https://access.redhat.com/errata/RHSA-2024:3343
- https://access.redhat.com/errata/RHSA-2024:9093
- https://access.redhat.com/errata/RHSA-2024:9122
- https://access.redhat.com/errata/RHSA-2025:12751
- https://access.redhat.com/security/cve/CVE-2024-31083
- https://bugzilla.redhat.com/show_bug.cgi?id=2272000
- http://www.openwall.com/lists/oss-security/2024/04/03/13
- http://www.openwall.com/lists/oss-security/2024/04/12/10
- https://access.redhat.com/errata/RHSA-2024:1785
- https://access.redhat.com/errata/RHSA-2024:2036
- https://access.redhat.com/errata/RHSA-2024:2037
- https://access.redhat.com/errata/RHSA-2024:2038
- https://access.redhat.com/errata/RHSA-2024:2039
- https://access.redhat.com/errata/RHSA-2024:2040
- https://access.redhat.com/errata/RHSA-2024:2041
- https://access.redhat.com/errata/RHSA-2024:2042
- https://access.redhat.com/errata/RHSA-2024:2080
- https://access.redhat.com/errata/RHSA-2024:2616
- https://access.redhat.com/errata/RHSA-2024:3258
- https://access.redhat.com/errata/RHSA-2024:3261
- https://access.redhat.com/errata/RHSA-2024:3343
- https://access.redhat.com/security/cve/CVE-2024-31083
- https://bugzilla.redhat.com/show_bug.cgi?id=2272000
- https://lists.debian.org/debian-lts-announce/2024/04/msg00009.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6TF7FZXOKHIKPZXYIMSQXKVH7WITKV3V/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EBLQJIAXEDMEGRGZMSH7CWUJHSVKUWLV/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P73U4DAAWLFZAPD75GLXTGMSTTQWW5AP/
Raw JSON (NVD)
Show
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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/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "secalert@redhat.com",
"description": [
{
"lang": "en",
"value": "CWE-416"
}
]
}
],
"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 encontró una vulnerabilidad de use-after-free en la función 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 múltiples 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 código arbitrario en el sistema enviando una solicitud especialmente manipulada."
}
],
"lastModified": "2026-06-17T07:27:45.977",
"sourceIdentifier": "secalert@redhat.com"
}