Common Weakness Enumeration

CWE-125

Allowed

Out-of-bounds Read

Abstraction: Base · Status: Draft

API response cwe.mitre.org

The product reads data past the end, or before the beginning, of the intended buffer.

11347 vulnerabilities reference this CWE, most recent first.

GHSA-382J-8MXH-C7X2

Vulnerability from github – Published: 2026-06-25 18:35 – Updated: 2026-06-25 18:35
VLAI
Summary
MessagePack-CSharp: Denial of service vulnerabilities can swamp the CPU or crash the process with stack and heap overflows
Details

Summary

MessagePackReader.ReadDateTime() can allocate stack memory based on an attacker-controlled MessagePack extension length. In the slow path for timestamp extension parsing, the computed tokenSize includes the extension body length from the wire and is used in a stackalloc operation before the extension length is validated as one of the valid timestamp sizes.

A very small payload can claim a large timestamp extension body and cause a stack allocation large enough to trigger an uncatchable StackOverflowException, terminating the host process.

Impact

Applications are affected when they deserialize untrusted payloads into types containing DateTime values. This path is available through the standard formatter set and does not require opting into typeless serialization, LZ4 compression, Unity-specific resolvers, or other specialized features.

MessagePackSecurity.UntrustedData and MaximumObjectGraphDepth do not mitigate this issue because the crash is caused by a single-frame stack allocation, not by object graph recursion.

An attacker can send a MessagePack timestamp extension header with an oversized body length and insufficient body bytes. The reader enters the slow path, attempts to stack-allocate a buffer sized from that declared length, and can terminate the process before a catchable serialization exception is thrown.

Affected components

  • Package: MessagePack
  • API: MessagePackReader.ReadDateTime
  • Data types: DateTime and formatter paths that call ReadDateTime
  • Finding IDs: MESSAGEPACKCSHARP-020, related stack allocation finding MESSAGEPACKCSHARP-CROW-MEM-001

Patches

Fixes are prepared and will be released in coordinated patch versions.

Upgrade guidance:

  1. Upgrade MessagePack to the patched version for your release line.
  2. Upgrade companion MessagePack packages in the same dependency graph to the coordinated patched versions.

The fix should validate timestamp extension lengths before any stack allocation. Valid MessagePack timestamp payload lengths are limited to the supported timestamp encodings, so oversized extension lengths should fail with a catchable MessagePack serialization exception before the slow path allocates a buffer.

Workarounds

Patching is recommended.

Until a patched version is available, avoid deserializing untrusted MessagePack payloads into schemas that contain DateTime or DateTimeOffset values. Where possible, enforce strict maximum message sizes and reject malformed extension payloads before they reach MessagePack-CSharp.

There is no complete workaround for applications that must deserialize attacker-controlled MessagePack data containing date/time fields with affected versions.

Resources

  • MESSAGEPACKCSHARP-020: ReadDateTime stack allocation from attacker-controlled extension length
  • MESSAGEPACKCSHARP-CROW-MEM-001: related attacker-controlled stack allocation finding in MessagePackReader
  • CWE-770: Allocation of Resources Without Limits or Throttling

CVE split rationale

This vulnerability is independently fixable in the DateTime extension parsing path by validating extension lengths before stack allocation. It is separate from recursive stack overflows, LZ4 issues, and collection allocation bugs.

Severity
8.2 (High)
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "NuGet",
        "name": "MessagePack"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0"
            },
            {
              "fixed": "3.1.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-48502"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-1188",
      "CWE-125",
      "CWE-190",
      "CWE-407",
      "CWE-409",
      "CWE-470",
      "CWE-502",
      "CWE-674",
      "CWE-789"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-25T18:35:48Z",
    "nvd_published_at": "2026-06-22T22:16:47Z",
    "severity": "HIGH"
  },
  "details": "## Summary\n\n`MessagePackReader.ReadDateTime()` can allocate stack memory based on an attacker-controlled MessagePack extension length. In the slow path for timestamp extension parsing, the computed `tokenSize` includes the extension body length from the wire and is used in a `stackalloc` operation before the extension length is validated as one of the valid timestamp sizes.\n\nA very small payload can claim a large timestamp extension body and cause a stack allocation large enough to trigger an uncatchable `StackOverflowException`, terminating the host process.\n\n## Impact\n\nApplications are affected when they deserialize untrusted payloads into types containing `DateTime` values. This path is available through the standard formatter set and does not require opting into typeless serialization, LZ4 compression, Unity-specific resolvers, or other specialized features.\n\n`MessagePackSecurity.UntrustedData` and `MaximumObjectGraphDepth` do not mitigate this issue because the crash is caused by a single-frame stack allocation, not by object graph recursion.\n\nAn attacker can send a MessagePack timestamp extension header with an oversized body length and insufficient body bytes. The reader enters the slow path, attempts to stack-allocate a buffer sized from that declared length, and can terminate the process before a catchable serialization exception is thrown.\n\n## Affected components\n\n- Package: `MessagePack`\n- API: `MessagePackReader.ReadDateTime`\n- Data types: `DateTime` and formatter paths that call `ReadDateTime`\n- Finding IDs: `MESSAGEPACKCSHARP-020`, related stack allocation finding `MESSAGEPACKCSHARP-CROW-MEM-001`\n\n## Patches\n\nFixes are prepared and will be released in coordinated patch versions.\n\nUpgrade guidance:\n\n1. Upgrade `MessagePack` to the patched version for your release line.\n2. Upgrade companion MessagePack packages in the same dependency graph to the coordinated patched versions.\n\nThe fix should validate timestamp extension lengths before any stack allocation. Valid MessagePack timestamp payload lengths are limited to the supported timestamp encodings, so oversized extension lengths should fail with a catchable MessagePack serialization exception before the slow path allocates a buffer.\n\n## Workarounds\n\nPatching is recommended.\n\nUntil a patched version is available, avoid deserializing untrusted MessagePack payloads into schemas that contain `DateTime` or `DateTimeOffset` values. Where possible, enforce strict maximum message sizes and reject malformed extension payloads before they reach MessagePack-CSharp.\n\nThere is no complete workaround for applications that must deserialize attacker-controlled MessagePack data containing date/time fields with affected versions.\n\n## Resources\n\n- `MESSAGEPACKCSHARP-020`: `ReadDateTime` stack allocation from attacker-controlled extension length\n- `MESSAGEPACKCSHARP-CROW-MEM-001`: related attacker-controlled stack allocation finding in `MessagePackReader`\n- CWE-770: Allocation of Resources Without Limits or Throttling\n\n## CVE split rationale\n\nThis vulnerability is independently fixable in the DateTime extension parsing path by validating extension lengths before stack allocation. It is separate from recursive stack overflows, LZ4 issues, and collection allocation bugs.",
  "id": "GHSA-382j-8mxh-c7x2",
  "modified": "2026-06-25T18:35:48Z",
  "published": "2026-06-25T18:35:48Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/MessagePack-CSharp/MessagePack-CSharp/security/advisories/GHSA-382j-8mxh-c7x2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48502"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/MessagePack-CSharp/MessagePack-CSharp"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "MessagePack-CSharp: Denial of service vulnerabilities can swamp the CPU or crash the process with stack and heap overflows"
}

GHSA-382V-24PH-Q459

Vulnerability from github – Published: 2023-03-28 21:30 – Updated: 2023-03-28 21:30
VLAI
Details

Adobe Dimension versions 3.4.7 (and earlier) is affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2023-26340"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-03-28T20:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Adobe Dimension versions 3.4.7 (and earlier) is affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.",
  "id": "GHSA-382v-24ph-q459",
  "modified": "2023-03-28T21:30:18Z",
  "published": "2023-03-28T21:30:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-26340"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/dimension/apsb23-20.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-382V-CR8R-VRF3

Vulnerability from github – Published: 2023-09-04 03:30 – Updated: 2024-04-04 07:25
VLAI
Details

In stc, there is a possible out of bounds read due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS08048635; Issue ID: ALPS08048635.

Severity
6.3 (Medium)
CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2023-20851"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-09-04T03:15:12Z",
    "severity": "MODERATE"
  },
  "details": "In stc, there is a possible out of bounds read due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS08048635; Issue ID: ALPS08048635.",
  "id": "GHSA-382v-cr8r-vrf3",
  "modified": "2024-04-04T07:25:00Z",
  "published": "2023-09-04T03:30:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-20851"
    },
    {
      "type": "WEB",
      "url": "https://corp.mediatek.com/product-security-bulletin/September-2023"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-3863-H4XW-2XV3

Vulnerability from github – Published: 2022-05-24 17:09 – Updated: 2022-05-24 17:09
VLAI
Details

An issue was discovered in Pure-FTPd 1.0.49. An out-of-bounds (OOB) read has been detected in the pure_strcmp function in utils.c.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-9365"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-02-24T16:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in Pure-FTPd 1.0.49. An out-of-bounds (OOB) read has been detected in the pure_strcmp function in utils.c.",
  "id": "GHSA-3863-h4xw-2xv3",
  "modified": "2022-05-24T17:09:34Z",
  "published": "2022-05-24T17:09:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-9365"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jedisct1/pure-ftpd/commit/36c6d268cb190282a2c17106acfd31863121b58e"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jedisct1/pure-ftpd/commit/bf6fcd4935e95128cf22af5924cdc8fe5c0579da"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/22P44PECZWNDP7CMBL7NRBMNFS73C5Z2"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/B5NSUDWXZVWUCL6R2PTX3KBB42Z62CA5"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U5DBVHJCXWRSJPNJQCJQCKZF6ZDPZCKA"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202003-54"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-386R-9HQF-3F7P

Vulnerability from github – Published: 2022-05-24 17:35 – Updated: 2022-05-24 17:35
VLAI
Details

WECON PLC Editor Versions 1.3.8 and prior has a heap-based buffer overflow vulnerabilities have been identified that may allow arbitrary code execution.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-25181"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-12-01T15:15:00Z",
    "severity": "HIGH"
  },
  "details": "WECON PLC Editor Versions 1.3.8 and prior has a heap-based buffer overflow vulnerabilities have been identified that may allow arbitrary code execution.",
  "id": "GHSA-386r-9hqf-3f7p",
  "modified": "2022-05-24T17:35:10Z",
  "published": "2022-05-24T17:35:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-25181"
    },
    {
      "type": "WEB",
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-20-310-01"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-3887-HQFW-78P7

Vulnerability from github – Published: 2022-05-14 01:44 – Updated: 2022-05-14 01:44
VLAI
Details

An error within the "samsung_load_raw()" function (internal/dcraw_common.cpp) in LibRaw versions prior to 0.18.9 can be exploited to cause an out-of-bounds read memory access and subsequently cause a crash.

Severity
8.8 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2018-5807"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-12-07T22:29:00Z",
    "severity": "HIGH"
  },
  "details": "An error within the \"samsung_load_raw()\" function (internal/dcraw_common.cpp) in LibRaw versions prior to 0.18.9 can be exploited to cause an out-of-bounds read memory access and subsequently cause a crash.",
  "id": "GHSA-3887-hqfw-78p7",
  "modified": "2022-05-14T01:44:33Z",
  "published": "2022-05-14T01:44:33Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-5807"
    },
    {
      "type": "WEB",
      "url": "https://github.com/LibRaw/LibRaw/commit/fd6330292501983ac75fe4162275794b18445bd9"
    },
    {
      "type": "WEB",
      "url": "https://github.com/LibRaw/LibRaw/blob/master/Changelog.txt"
    },
    {
      "type": "WEB",
      "url": "https://secuniaresearch.flexerasoftware.com/advisories/81800"
    },
    {
      "type": "WEB",
      "url": "https://secuniaresearch.flexerasoftware.com/secunia_research/2018-10"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/3838-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-389Q-8MV3-6HX2

Vulnerability from github – Published: 2022-05-13 01:42 – Updated: 2022-05-13 01:42
VLAI
Details

In android for MSM, Firefox OS for MSM, QRD Android, with all Android releases from CAF using the Linux kernel, a buffer overread is observed in __wlan_hdd_cfg80211_set_pmksa when user space application sends PMKID of size less than WLAN_PMKID_LEN bytes.

Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2017-11090"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-11-16T22:29:00Z",
    "severity": "HIGH"
  },
  "details": "In android for MSM, Firefox OS for MSM, QRD Android, with all Android releases from CAF using the Linux kernel, a buffer overread is observed in __wlan_hdd_cfg80211_set_pmksa when user space application sends PMKID of size less than WLAN_PMKID_LEN bytes.",
  "id": "GHSA-389q-8mv3-6hx2",
  "modified": "2022-05-13T01:42:07Z",
  "published": "2022-05-13T01:42:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-11090"
    },
    {
      "type": "WEB",
      "url": "https://source.android.com/security/bulletin/pixel/2017-11-01"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-38CC-CMGP-9R6V

Vulnerability from github – Published: 2022-05-14 00:53 – Updated: 2022-05-14 00:53
VLAI
Details

Adobe Acrobat and Reader 2018.011.20040 and earlier, 2017.011.30080 and earlier, and 2015.006.30418 and earlier versions have an Out-of-bounds read vulnerability. Successful exploitation could lead to information disclosure.

Severity
6.5 (Medium)
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2018-5061"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-07-20T19:29:00Z",
    "severity": "MODERATE"
  },
  "details": "Adobe Acrobat and Reader 2018.011.20040 and earlier, 2017.011.30080 and earlier, and 2015.006.30418 and earlier versions have an Out-of-bounds read vulnerability. Successful exploitation could lead to information disclosure.",
  "id": "GHSA-38cc-cmgp-9r6v",
  "modified": "2022-05-14T00:53:27Z",
  "published": "2022-05-14T00:53:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-5061"
    },
    {
      "type": "WEB",
      "url": "https://helpx.adobe.com/security/products/acrobat/apsb18-21.html"
    },
    {
      "type": "WEB",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-18-675"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/104699"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1041250"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-38FH-5RPQ-PXQ2

Vulnerability from github – Published: 2022-05-24 17:44 – Updated: 2022-05-24 17:44
VLAI
Details

Buffer over-read can happen while parsing received SDP values due to lack of NULL termination check on SDP in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables

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{
  "affected": [],
  "aliases": [
    "CVE-2020-11171"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-03-17T06:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "Buffer over-read can happen while parsing received SDP values due to lack of NULL termination check on SDP in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice \u0026 Music, Snapdragon Wearables",
  "id": "GHSA-38fh-5rpq-pxq2",
  "modified": "2022-05-24T17:44:39Z",
  "published": "2022-05-24T17:44:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-11171"
    },
    {
      "type": "WEB",
      "url": "https://www.qualcomm.com/company/product-security/bulletins/march-2021-bulletin"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-38G8-FX3R-J23M

Vulnerability from github – Published: 2022-05-24 17:14 – Updated: 2022-05-24 17:14
VLAI
Details

Inappropriate implementation in developer tools in Google Chrome prior to 81.0.4044.92 allowed a remote attacker who had convinced the user to use devtools to potentially exploit heap corruption via a crafted HTML page.

Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2020-6447"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119",
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-04-13T18:15:00Z",
    "severity": "MODERATE"
  },
  "details": "Inappropriate implementation in developer tools in Google Chrome prior to 81.0.4044.92 allowed a remote attacker who had convinced the user to use devtools to potentially exploit heap corruption via a crafted HTML page.",
  "id": "GHSA-38g8-fx3r-j23m",
  "modified": "2022-05-24T17:14:08Z",
  "published": "2022-05-24T17:14:08Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-6447"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2020/04/stable-channel-update-for-desktop_7.html"
    },
    {
      "type": "WEB",
      "url": "https://crbug.com/991217"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6XWIVVYIQU67QR2LHNGGZBS4FZOW2RQO"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HFVP775RPRDVY5FUCN7ABH5AE74TQFDD"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XMXPDHEEACPD3BCMTC26SCCYB2ZMUOAO"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2020/dsa-4714"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00024.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00031.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}
Mitigation MIT-5
Implementation

Strategy: Input Validation

  • Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
  • When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
  • Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
  • To reduce the likelihood of introducing an out-of-bounds read, ensure that you validate and ensure correct calculations for any length argument, buffer size calculation, or offset. Be especially careful of relying on a sentinel (i.e. special character such as NUL) in untrusted inputs.
Mitigation
Architecture and Design

Strategy: Language Selection

Use a language that provides appropriate memory abstractions.

CAPEC-540: Overread Buffers

An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution.

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