fkie_cve-2024-31082
Vulnerability from fkie_nvd
Published
2024-04-04 14:15
Modified
2024-11-21 09:12
Severity ?
7.3 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
Summary
A heap-based buffer over-read vulnerability was found in the X.org server's ProcAppleDRICreatePixmap() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly when triggered by a client with a different endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory values and then transmit them back to the client until encountering an unmapped page, resulting in a crash. Despite the attacker's inability to control the specific memory copied into the replies, the small length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds reads.
References
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2024-31082
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2271999
secalert@redhat.comhttps://lists.x.org/archives/xorg-announce/2024-April/003497.html
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2024/04/03/13
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2024/04/12/10
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/security/cve/CVE-2024-31082
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=2271999
af854a3a-2127-422b-91ae-364da2661108https://lists.x.org/archives/xorg-announce/2024-April/003497.html
Impacted products
Vendor Product Version


To clipboard 

{
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "A heap-based buffer over-read vulnerability was found in the X.org server's ProcAppleDRICreatePixmap() function. This issue occurs when byte-swapped length values are used in replies, potentially leading to memory leakage and segmentation faults, particularly when triggered by a client with a different endianness. This vulnerability could be exploited by an attacker to cause the X server to read heap memory values and then transmit them back to the client until encountering an unmapped page, resulting in a crash. Despite the attacker's inability to control the specific memory copied into the replies, the small length values typically stored in a 32-bit integer can result in significant attempted out-of-bounds reads.",
      },
      {
         lang: "es",
         value: "Se encontró una vulnerabilidad de sobrelectura del búfer de almacenamiento dinámico en la función ProcAppleDRICreatePixmap() del servidor X.org. Este problema se produce cuando se utilizan valores de longitud de bytes intercambiados en las respuestas, lo que puede provocar pérdidas de memoria y errores de segmentación, especialmente cuando lo activa un cliente con una endianidad diferente. Un atacante podría aprovechar esta vulnerabilidad para hacer que el servidor X lea los valores de la memoria dinámica y luego los transmita de vuelta al cliente hasta encontrar una página no asignada, lo que provocaría un bloqueo. A pesar de la incapacidad del atacante para controlar la memoria específica copiada en las respuestas, los pequeños valores de longitud que normalmente se almacenan en un entero de 32 bits pueden dar como resultado importantes intentos de lecturas fuera de los límites.",
      },
   ],
   id: "CVE-2024-31082",
   lastModified: "2024-11-21T09:12:49.110",
   metrics: {
      cvssMetricV31: [
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "LOCAL",
               availabilityImpact: "HIGH",
               baseScore: 7.3,
               baseSeverity: "HIGH",
               confidentialityImpact: "HIGH",
               integrityImpact: "LOW",
               privilegesRequired: "LOW",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H",
               version: "3.1",
            },
            exploitabilityScore: 1.8,
            impactScore: 5.5,
            source: "secalert@redhat.com",
            type: "Secondary",
         },
      ],
   },
   published: "2024-04-04T14:15:10.833",
   references: [
      {
         source: "secalert@redhat.com",
         url: "https://access.redhat.com/security/cve/CVE-2024-31082",
      },
      {
         source: "secalert@redhat.com",
         url: "https://bugzilla.redhat.com/show_bug.cgi?id=2271999",
      },
      {
         source: "secalert@redhat.com",
         url: "https://lists.x.org/archives/xorg-announce/2024-April/003497.html",
      },
      {
         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/security/cve/CVE-2024-31082",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://bugzilla.redhat.com/show_bug.cgi?id=2271999",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://lists.x.org/archives/xorg-announce/2024-April/003497.html",
      },
   ],
   sourceIdentifier: "secalert@redhat.com",
   vulnStatus: "Awaiting Analysis",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-126",
            },
         ],
         source: "secalert@redhat.com",
         type: "Secondary",
      },
   ],
}


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