ghsa-cm2m-f7gc-hv64
Vulnerability from github
Published
2024-04-04 15:30
Modified
2024-07-14 21:30
Severity ?
7.3 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
Details

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.

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{
   affected: [],
   aliases: [
      "CVE-2024-31082",
   ],
   database_specific: {
      cwe_ids: [
         "CWE-126",
      ],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2024-04-04T14:15:10Z",
      severity: "HIGH",
   },
   details: "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.",
   id: "GHSA-cm2m-f7gc-hv64",
   modified: "2024-07-14T21:30:37Z",
   published: "2024-04-04T15:30:34Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2024-31082",
      },
      {
         type: "WEB",
         url: "https://access.redhat.com/security/cve/CVE-2024-31082",
      },
      {
         type: "WEB",
         url: "https://bugzilla.redhat.com/show_bug.cgi?id=2271999",
      },
      {
         type: "WEB",
         url: "https://lists.x.org/archives/xorg-announce/2024-April/003497.html",
      },
      {
         type: "WEB",
         url: "http://www.openwall.com/lists/oss-security/2024/04/03/13",
      },
      {
         type: "WEB",
         url: "http://www.openwall.com/lists/oss-security/2024/04/12/10",
      },
   ],
   schema_version: "1.4.0",
   severity: [
      {
         score: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H",
         type: "CVSS_V3",
      },
   ],
}


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