Common Weakness Enumeration

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

CVE-2026-11623 (GCVE-0-2026-11623)

Vulnerability from cvelistv5 – Published: 2026-06-09 03:15 – Updated: 2026-06-23 04:49 X_Open Source
VLAI
Title
tmux image.c image_free use after free
Summary
A security vulnerability has been detected in tmux up to 3.6a. Affected is the function image_free of the file image.c. Such manipulation leads to use after free. Local access is required to approach this attack. This attack is characterized by high complexity. The exploitability is told to be difficult. The exploit has been disclosed publicly and may be used. Upgrading to version 3.7-rc is able to address this issue. The name of the patch is fc6d94a9f8a593bd8b7031650802084385d4ee03. The affected component should be upgraded.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
Impacted products
Vendor Product Version
n/a tmux Affected: 3.6a
Unaffected: 3.7-rc
    cpe:2.3:a:tmux:tmux:*:*:*:*:*:*:*:*
Credits
XlabAI (VulDB User) XlabAI (VulDB User)
Show details on NVD website

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CVE-2026-12174 (GCVE-0-2026-12174)

Vulnerability from cvelistv5 – Published: 2026-06-13 20:15 – Updated: 2026-06-15 17:02
VLAI
Title
D-Link DCS-935L HTTP rhea snprintf format string
Summary
A security vulnerability has been detected in D-Link DCS-935L 1.10.01. This issue affects the function snprintf of the file /web/cgi-bin/greece/rhea of the component HTTP Handler. Such manipulation of the argument data leads to format string. The attack may be launched remotely. The exploit has been disclosed publicly and may be used.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
D-Link DCS-935L Affected: 1.10.01
    cpe:2.3:h:d-link:dcs-935l:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Simplicity (VulDB User)
Show details on NVD website

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CVE-2026-12192 (GCVE-0-2026-12192)

Vulnerability from cvelistv5 – Published: 2026-06-14 23:15 – Updated: 2026-06-15 19:25
VLAI
Title
GALAYOU Y4 Web Server buffer overflow
Summary
A vulnerability was determined in GALAYOU Y4 1.0.0. Impacted is an unknown function of the component Web Server. This manipulation causes buffer overflow. The attack is only possible within the local network. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/370838 vdb-entry
https://vuldb.com/vuln/370838/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-12192 third-party-advisory
https://vuldb.com/submit/825801 third-party-advisory
Impacted products
Vendor Product Version
GALAYOU Y4 Affected: 1.0.0
    cpe:2.3:a:galayou:y4:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
0xd0 (VulDB User) VulDB CNA Team
Show details on NVD website

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CVE-2026-12193 (GCVE-0-2026-12193)

Vulnerability from cvelistv5 – Published: 2026-06-14 23:30 – Updated: 2026-06-15 12:49
VLAI
Title
VS Revo RevoUninstaller IOCTL RevoDetector.sys IOCtl_Handler heap-based overflow
Summary
A vulnerability was identified in VS Revo RevoUninstaller 2.5.x/2.6.x. The affected element is the function IOCtl_Handler in the library RevoDetector.sys of the component IOCTL Handler. Such manipulation leads to heap-based buffer overflow. The attack must be carried out locally. The exploit is publicly available and might be used. Upgrading to version 2.7.0 is sufficient to fix this issue. It is recommended to upgrade the affected component.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
Impacted products
Vendor Product Version
VS Revo RevoUninstaller Affected: 2.5.*
Affected: 2.6.*
Unaffected: 2.7.0
    cpe:2.3:a:vs_revo:revouninstaller:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Jordanhiggins (VulDB User)
Show details on NVD website

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CVE-2026-12200 (GCVE-0-2026-12200)

Vulnerability from cvelistv5 – Published: 2026-06-15 00:15 – Updated: 2026-06-15 21:50
VLAI
Title
Ritlabs TinyWeb Server Header libeay32.dll.html stack-based overflow
Summary
A security vulnerability has been detected in Ritlabs TinyWeb Server up to 1.94 on Win32. This impacts an unknown function in the library libeay32.dll.html of the component Header Handler. The manipulation of the argument Authorization leads to stack-based buffer overflow. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/370842 vdb-entrytechnical-description
https://vuldb.com/vuln/370842/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-12200 third-party-advisory
https://vuldb.com/submit/829894 third-party-advisory
https://nathan2.com/posts/tinyweb/ exploit
Impacted products
Vendor Product Version
Ritlabs TinyWeb Server Affected: 1.0
Affected: 1.1
Affected: 1.2
Affected: 1.3
Affected: 1.4
Affected: 1.5
Affected: 1.6
Affected: 1.7
Affected: 1.8
Affected: 1.9
Affected: 1.10
Affected: 1.11
Affected: 1.12
Affected: 1.13
Affected: 1.14
Affected: 1.15
Affected: 1.16
Affected: 1.17
Affected: 1.18
Affected: 1.19
Affected: 1.20
Affected: 1.21
Affected: 1.22
Affected: 1.23
Affected: 1.24
Affected: 1.25
Affected: 1.26
Affected: 1.27
Affected: 1.28
Affected: 1.29
Affected: 1.30
Affected: 1.31
Affected: 1.32
Affected: 1.33
Affected: 1.34
Affected: 1.35
Affected: 1.36
Affected: 1.37
Affected: 1.38
Affected: 1.39
Affected: 1.40
Affected: 1.41
Affected: 1.42
Affected: 1.43
Affected: 1.44
Affected: 1.45
Affected: 1.46
Affected: 1.47
Affected: 1.48
Affected: 1.49
Affected: 1.50
Affected: 1.51
Affected: 1.52
Affected: 1.53
Affected: 1.54
Affected: 1.55
Affected: 1.56
Affected: 1.57
Affected: 1.58
Affected: 1.59
Affected: 1.60
Affected: 1.61
Affected: 1.62
Affected: 1.63
Affected: 1.64
Affected: 1.65
Affected: 1.66
Affected: 1.67
Affected: 1.68
Affected: 1.69
Affected: 1.70
Affected: 1.71
Affected: 1.72
Affected: 1.73
Affected: 1.74
Affected: 1.75
Affected: 1.76
Affected: 1.77
Affected: 1.78
Affected: 1.79
Affected: 1.80
Affected: 1.81
Affected: 1.82
Affected: 1.83
Affected: 1.84
Affected: 1.85
Affected: 1.86
Affected: 1.87
Affected: 1.88
Affected: 1.89
Affected: 1.90
Affected: 1.91
Affected: 1.92
Affected: 1.93
Affected: 1.94
    cpe:2.3:a:ritlabs:tinyweb_server:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
nathan2 (VulDB User) VulDB CNA Team
Show details on NVD website

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          "name": "Submit #829894 | RITLabs TinyWeb 1.94 Stack-based Buffer Overflow",
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      "title": "Ritlabs TinyWeb Server Header libeay32.dll.html stack-based overflow"
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CVE-2026-12216 (GCVE-0-2026-12216)

Vulnerability from cvelistv5 – Published: 2026-06-15 03:45 – Updated: 2026-06-15 13:19
VLAI
Title
svaarala duktape duk_api_bytecode.c memory corruption
Summary
A weakness has been identified in svaarala duktape up to 2.99.99. This issue affects some unknown processing of the file duk_api_bytecode.c. Executing a manipulation of the argument count_instr can lead to memory corruption. The attack requires local access. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/370859 vdb-entrytechnical-description
https://vuldb.com/vuln/370859/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-12216 third-party-advisory
https://vuldb.com/submit/833814 third-party-advisory
https://github.com/hmKunlun/compileOOB/blob/main/… exploit
Impacted products
Vendor Product Version
svaarala duktape Affected: 2.99.0
Affected: 2.99.1
Affected: 2.99.2
Affected: 2.99.3
Affected: 2.99.4
Affected: 2.99.5
Affected: 2.99.6
Affected: 2.99.7
Affected: 2.99.8
Affected: 2.99.9
Affected: 2.99.10
Affected: 2.99.11
Affected: 2.99.12
Affected: 2.99.13
Affected: 2.99.14
Affected: 2.99.15
Affected: 2.99.16
Affected: 2.99.17
Affected: 2.99.18
Affected: 2.99.19
Affected: 2.99.20
Affected: 2.99.21
Affected: 2.99.22
Affected: 2.99.23
Affected: 2.99.24
Affected: 2.99.25
Affected: 2.99.26
Affected: 2.99.27
Affected: 2.99.28
Affected: 2.99.29
Affected: 2.99.30
Affected: 2.99.31
Affected: 2.99.32
Affected: 2.99.33
Affected: 2.99.34
Affected: 2.99.35
Affected: 2.99.36
Affected: 2.99.37
Affected: 2.99.38
Affected: 2.99.39
Affected: 2.99.40
Affected: 2.99.41
Affected: 2.99.42
Affected: 2.99.43
Affected: 2.99.44
Affected: 2.99.45
Affected: 2.99.46
Affected: 2.99.47
Affected: 2.99.48
Affected: 2.99.49
Affected: 2.99.50
Affected: 2.99.51
Affected: 2.99.52
Affected: 2.99.53
Affected: 2.99.54
Affected: 2.99.55
Affected: 2.99.56
Affected: 2.99.57
Affected: 2.99.58
Affected: 2.99.59
Affected: 2.99.60
Affected: 2.99.61
Affected: 2.99.62
Affected: 2.99.63
Affected: 2.99.64
Affected: 2.99.65
Affected: 2.99.66
Affected: 2.99.67
Affected: 2.99.68
Affected: 2.99.69
Affected: 2.99.70
Affected: 2.99.71
Affected: 2.99.72
Affected: 2.99.73
Affected: 2.99.74
Affected: 2.99.75
Affected: 2.99.76
Affected: 2.99.77
Affected: 2.99.78
Affected: 2.99.79
Affected: 2.99.80
Affected: 2.99.81
Affected: 2.99.82
Affected: 2.99.83
Affected: 2.99.84
Affected: 2.99.85
Affected: 2.99.86
Affected: 2.99.87
Affected: 2.99.88
Affected: 2.99.89
Affected: 2.99.90
Affected: 2.99.91
Affected: 2.99.92
Affected: 2.99.93
Affected: 2.99.94
Affected: 2.99.95
Affected: 2.99.96
Affected: 2.99.97
Affected: 2.99.98
Affected: 2.99.99
    cpe:2.3:a:svaarala:duktape:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
kunlun (VulDB User) VulDB CNA Team
Show details on NVD website

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            {
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              "version": "2.99.37"
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            {
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            {
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              "version": "2.99.58"
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              "status": "affected",
              "version": "2.99.59"
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              "version": "2.99.60"
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              "version": "2.99.61"
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              "version": "2.99.62"
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              "version": "2.99.63"
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CVE-2026-12218 (GCVE-0-2026-12218)

Vulnerability from cvelistv5 – Published: 2026-06-15 04:15 – Updated: 2026-06-27 05:44
VLAI
Title
Yealink SIP-T46U Web FastCGI Service beforewifitest StartReportInformation stack-based overflow
Summary
A vulnerability was detected in Yealink SIP-T46U 108.87.50.1. The affected element is the function StartReportInformation of the file /api/inner/beforewifitest of the component Web FastCGI Service. The manipulation of the argument port results in stack-based buffer overflow. Access to the local network is required for this attack. The exploit is now public and may be used. The vendor was contacted early about this disclosure and is working on a patch to fix it.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/370861 vdb-entrytechnical-description
https://vuldb.com/vuln/370861/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-12218 third-party-advisory
https://vuldb.com/submit/834193 third-party-advisory
http://cdn2.v50to.cc/T46U/T46U_beforewifitest_sta… broken-linkexploit
Impacted products
Vendor Product Version
Yealink SIP-T46U Affected: 108.87.50.1
    cpe:2.3:a:yealink:sip-t46u:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
CookedMelon (VulDB User) VulDB CNA Team
Show details on NVD website

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CVE-2026-12220 (GCVE-0-2026-12220)

Vulnerability from cvelistv5 – Published: 2026-06-15 04:45 – Updated: 2026-06-27 05:45
VLAI
Title
Yealink SIP-T46U Firmware Chunk Upload handler accupgradebychunk mod_upgrade.SparePartsUpload stack-based overflow
Summary
A vulnerability has been found in Yealink SIP-T46U 108.86.0.118. This affects the function mod_upgrade.SparePartsUpload of the file /api/upgrade/accupgradebychunk of the component Firmware Chunk Upload handler. Such manipulation of the argument uid leads to stack-based buffer overflow. The attack can only be initiated within the local network. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure and is working on a patch to fix it.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/370863 vdb-entrytechnical-description
https://vuldb.com/vuln/370863/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-12220 third-party-advisory
https://vuldb.com/submit/834205 third-party-advisory
http://cdn2.v50to.cc/T46U/T46U_mod_upgrade_SpareP… broken-linkexploitpatch
Impacted products
Vendor Product Version
Yealink SIP-T46U Affected: 108.86.0.118
    cpe:2.3:a:yealink:sip-t46u:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
CookedMelon (VulDB User) VulDB CNA Team
Show details on NVD website

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CVE-2026-12221 (GCVE-0-2026-12221)

Vulnerability from cvelistv5 – Published: 2026-06-15 05:00 – Updated: 2026-06-27 05:45
VLAI
Title
Yealink SIP-T46U Firmware Chunk Upload upgrade sprintf stack-based overflow
Summary
A vulnerability was found in Yealink SIP-T46U 108.86.0.118. This impacts the function sprintf of the file /api/upgrade/upgrade of the component Firmware Chunk Upload Handler. Performing a manipulation of the argument uid/start_offset results in stack-based buffer overflow. The attack needs to be approached within the local network. The exploit has been made public and could be used. The vendor was contacted early about this disclosure and is working on a patch to fix it.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/370864 vdb-entrytechnical-description
https://vuldb.com/vuln/370864/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-12221 third-party-advisory
https://vuldb.com/submit/834207 third-party-advisory
http://cdn2.v50to.cc/T46U/T46U_mod_upgrade_Upgrad… broken-linkexploitpatch
Impacted products
Vendor Product Version
Yealink SIP-T46U Affected: 108.86.0.118
    cpe:2.3:a:yealink:sip-t46u:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
CookedMelon (VulDB User) VulDB CNA Team
Show details on NVD website

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CVE-2026-12222 (GCVE-0-2026-12222)

Vulnerability from cvelistv5 – Published: 2026-06-15 05:15 – Updated: 2026-06-27 05:45
VLAI
Title
Yealink SIP-T46U Web FastCGI Service bttest mod_webd.BlueToothTest stack-based overflow
Summary
A vulnerability was determined in Yealink SIP-T46U 108.86.0.118. Affected is the function mod_webd.BlueToothTest of the file /api/inner/bttest of the component Web FastCGI Service. Executing a manipulation of the argument btMac/pin/reserved can lead to stack-based buffer overflow. The attack needs to be done within the local network. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure and is working on a patch to fix it.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/370865 vdb-entrytechnical-description
https://vuldb.com/vuln/370865/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-12222 third-party-advisory
https://vuldb.com/submit/834602 third-party-advisory
http://cdn2.v50to.cc/T46U/T46U_mod_webd_BlueTooth… broken-linkexploit
Impacted products
Vendor Product Version
Yealink SIP-T46U Affected: 108.86.0.118
    cpe:2.3:a:yealink:sip-t46u:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
ChiChen241 (VulDB User) VulDB CNA Team
Show details on NVD website

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          "type": "reporter",
          "value": "ChiChen241 (VulDB User)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "VulDB CNA Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was determined in Yealink SIP-T46U 108.86.0.118. Affected is the function mod_webd.BlueToothTest of the file /api/inner/bttest of the component Web FastCGI Service. Executing a manipulation of the argument btMac/pin/reserved can lead to stack-based buffer overflow. The attack needs to be done within the local network. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure and is working on a patch to fix it."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:C",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:C",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 7.7,
            "vectorString": "AV:A/AC:L/Au:S/C:C/I:C/A:C/E:POC/RL:ND/RC:C",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-121",
              "description": "Stack-based Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-119",
              "description": "Memory Corruption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-27T05:45:32.646Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-370865 | Yealink SIP-T46U Web FastCGI Service bttest mod_webd.BlueToothTest stack-based overflow",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/370865"
        },
        {
          "name": "VDB-370865 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/370865/cti"
        },
        {
          "name": "CVE-2026-12222 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-12222"
        },
        {
          "name": "Submit #834602 | yealink T46U 108.86.0.118 Stack-based Buffer Overflow",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/834602"
        },
        {
          "tags": [
            "broken-link",
            "exploit"
          ],
          "url": "http://cdn2.v50to.cc/T46U/T46U_mod_webd_BlueToothTest_off_by_one.zip"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-06-14T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-06-14T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-06-27T07:48:07.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "Yealink SIP-T46U Web FastCGI Service bttest mod_webd.BlueToothTest stack-based overflow"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-12222",
    "datePublished": "2026-06-15T05:15:09.045Z",
    "dateReserved": "2026-06-14T13:54:21.407Z",
    "dateUpdated": "2026-06-27T05:45:32.646Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Mitigation ID: MIT-3

Phase: Requirements

Strategy: Language Selection

Description:

  • Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
  • For example, many languages that perform their own memory management, such as Java and Perl, are not subject to buffer overflows. Other languages, such as Ada and C#, typically provide overflow protection, but the protection can be disabled by the programmer.
  • Be wary that a language's interface to native code may still be subject to overflows, even if the language itself is theoretically safe.
Mitigation ID: MIT-4.1

Phase: Architecture and Design

Strategy: Libraries or Frameworks

Description:

  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
  • Examples include the Safe C String Library (SafeStr) by Messier and Viega [REF-57], and the Strsafe.h library from Microsoft [REF-56]. These libraries provide safer versions of overflow-prone string-handling functions.
Mitigation ID: MIT-10

Phases: Operation, Build and Compilation

Strategy: Environment Hardening

Description:

  • Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking.
  • D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
Mitigation ID: MIT-9

Phase: Implementation

Description:

  • Consider adhering to the following rules when allocating and managing an application's memory:
  • Double check that the buffer is as large as specified.
  • When using functions that accept a number of bytes to copy, such as strncpy(), be aware that if the destination buffer size is equal to the source buffer size, it may not NULL-terminate the string.
  • Check buffer boundaries if accessing the buffer in a loop and make sure there is no danger of writing past the allocated space.
  • If necessary, truncate all input strings to a reasonable length before passing them to the copy and concatenation functions.
Mitigation ID: MIT-11

Phases: Operation, Build and Compilation

Strategy: Environment Hardening

Description:

  • Run or compile the software using features or extensions that randomly arrange the positions of a program's executable and libraries in memory. Because this makes the addresses unpredictable, it can prevent an attacker from reliably jumping to exploitable code.
  • Examples include Address Space Layout Randomization (ASLR) [REF-58] [REF-60] and Position-Independent Executables (PIE) [REF-64]. Imported modules may be similarly realigned if their default memory addresses conflict with other modules, in a process known as "rebasing" (for Windows) and "prelinking" (for Linux) [REF-1332] using randomly generated addresses. ASLR for libraries cannot be used in conjunction with prelink since it would require relocating the libraries at run-time, defeating the whole purpose of prelinking.
  • For more information on these techniques see D3-SAOR (Segment Address Offset Randomization) from D3FEND [REF-1335].
Mitigation ID: MIT-12

Phase: Operation

Strategy: Environment Hardening

Description:

  • Use a CPU and operating system that offers Data Execution Protection (using hardware NX or XD bits) or the equivalent techniques that simulate this feature in software, such as PaX [REF-60] [REF-61]. These techniques ensure that any instruction executed is exclusively at a memory address that is part of the code segment.
  • For more information on these techniques see D3-PSEP (Process Segment Execution Prevention) from D3FEND [REF-1336].
Mitigation ID: MIT-13

Phase: Implementation

Description:

  • Replace unbounded copy functions with analogous functions that support length arguments, such as strcpy with strncpy. Create these if they are not available.
CAPEC-10: Buffer Overflow via Environment Variables

This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the adversary finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.

CAPEC-100: Overflow Buffers

Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an adversary. As a consequence, an adversary is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the adversaries' choice.

CAPEC-123: Buffer Manipulation

An adversary manipulates an application's interaction with a buffer in an attempt to read or modify data they shouldn't have access to. Buffer attacks are distinguished in that it is the buffer space itself that is the target of the attack rather than any code responsible for interpreting the content of the buffer. In virtually all buffer attacks the content that is placed in the buffer is immaterial. Instead, most buffer attacks involve retrieving or providing more input than can be stored in the allocated buffer, resulting in the reading or overwriting of other unintended program memory.

CAPEC-14: Client-side Injection-induced Buffer Overflow

This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service. This hostile service is created to deliver the correct content to the client software. For example, if the client-side application is a browser, the service will host a webpage that the browser loads.

CAPEC-24: Filter Failure through Buffer Overflow

In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).

CAPEC-42: MIME Conversion

An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

CAPEC-44: Overflow Binary Resource File

An attack of this type exploits a buffer overflow vulnerability in the handling of binary resources. Binary resources may include music files like MP3, image files like JPEG files, and any other binary file. These attacks may pass unnoticed to the client machine through normal usage of files, such as a browser loading a seemingly innocent JPEG file. This can allow the adversary access to the execution stack and execute arbitrary code in the target process.

CAPEC-45: Buffer Overflow via Symbolic Links

This type of attack leverages the use of symbolic links to cause buffer overflows. An adversary can try to create or manipulate a symbolic link file such that its contents result in out of bounds data. When the target software processes the symbolic link file, it could potentially overflow internal buffers with insufficient bounds checking.

CAPEC-46: Overflow Variables and Tags

This type of attack leverages the use of tags or variables from a formatted configuration data to cause buffer overflow. The adversary crafts a malicious HTML page or configuration file that includes oversized strings, thus causing an overflow.

CAPEC-47: Buffer Overflow via Parameter Expansion

In this attack, the target software is given input that the adversary knows will be modified and expanded in size during processing. This attack relies on the target software failing to anticipate that the expanded data may exceed some internal limit, thereby creating a buffer overflow.

CAPEC-8: Buffer Overflow in an API Call

This attack targets libraries or shared code modules which are vulnerable to buffer overflow attacks. An adversary who has knowledge of known vulnerable libraries or shared code can easily target software that makes use of these libraries. All clients that make use of the code library thus become vulnerable by association. This has a very broad effect on security across a system, usually affecting more than one software process.

CAPEC-9: Buffer Overflow in Local Command-Line Utilities

This attack targets command-line utilities available in a number of shells. An adversary can leverage a vulnerability found in a command-line utility to escalate privilege to root.

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