Common Weakness Enumeration

CWE-476

Allowed

NULL Pointer Dereference

Abstraction: Base · Status: Stable

API response cwe.mitre.org

The product dereferences a pointer that it expects to be valid but is NULL.

6310 vulnerabilities reference this CWE, most recent first.

GHSA-W4R8-Q3V5-4X28

Vulnerability from github – Published: 2024-02-23 15:30 – Updated: 2026-05-12 12:31
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

block: add check that partition length needs to be aligned with block size

Before calling add partition or resize partition, there is no check on whether the length is aligned with the logical block size. If the logical block size of the disk is larger than 512 bytes, then the partition size maybe not the multiple of the logical block size, and when the last sector is read, bio_truncate() will adjust the bio size, resulting in an IO error if the size of the read command is smaller than the logical block size.If integrity data is supported, this will also result in a null pointer dereference when calling bio_integrity_free.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2023-52458"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-23T15:15:08Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: add check that partition length needs to be aligned with block size\n\nBefore calling add partition or resize partition, there is no check\non whether the length is aligned with the logical block size.\nIf the logical block size of the disk is larger than 512 bytes,\nthen the partition size maybe not the multiple of the logical block size,\nand when the last sector is read, bio_truncate() will adjust the bio size,\nresulting in an IO error if the size of the read command is smaller than\nthe logical block size.If integrity data is supported, this will also\nresult in a null pointer dereference when calling bio_integrity_free.",
  "id": "GHSA-w4r8-q3v5-4x28",
  "modified": "2026-05-12T12:31:35Z",
  "published": "2024-02-23T15:30:36Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52458"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5010c27120962c85d2f421d2cf211791c9603503"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6f64f866aa1ae6975c95d805ed51d7e9433a0016"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8f6dfa1f1efe6dcca2d43e575491d8fcbe922f62"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bcdc288e7bc008daf38ef0401b53e4a8bb61bbe5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cb16cc1abda18a9514106d2ac8c8d7abc0be5ed8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ef31cc87794731ffcb578a195a2c47d744e25fb8"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W53Q-P36J-4538

Vulnerability from github – Published: 2025-05-14 18:30 – Updated: 2025-05-14 18:30
VLAI
Details

Integer underflow in some Zoom Workplace Apps may allow an authenticated user to conduct a denial of service via network access.

Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-30668"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-191",
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-14T18:15:30Z",
    "severity": "MODERATE"
  },
  "details": "Integer underflow in some Zoom Workplace Apps may allow an authenticated user to conduct a denial of service via network access.",
  "id": "GHSA-w53q-p36j-4538",
  "modified": "2025-05-14T18:30:51Z",
  "published": "2025-05-14T18:30:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-30668"
    },
    {
      "type": "WEB",
      "url": "https://www.zoom.com/en/trust/security-bulletin/zsb-25020"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W559-Q3F6-3XX4

Vulnerability from github – Published: 2022-05-17 00:22 – Updated: 2025-04-20 03:47
VLAI
Details

In Watchdog Anti-Malware 2.74.186.150 and Online Security Pro 2.74.186.150, the zam32.sys driver contains a NULL pointer dereference vulnerability that gets triggered when sending an operation to ioctl 0x80002054. This is due to the input buffer being NULL or the input buffer size being 0 as they are not validated.

Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2017-15920"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-10-30T15:29:00Z",
    "severity": "HIGH"
  },
  "details": "In Watchdog Anti-Malware 2.74.186.150 and Online Security Pro 2.74.186.150, the zam32.sys driver contains a NULL pointer dereference vulnerability that gets triggered when sending an operation to ioctl 0x80002054. This is due to the input buffer being NULL or the input buffer size being 0 as they are not validated.",
  "id": "GHSA-w559-q3f6-3xx4",
  "modified": "2025-04-20T03:47:50Z",
  "published": "2022-05-17T00:22:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-15920"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/43058"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/144786/Watchdog-Development-Anti-Malware-Online-Security-Pro-NULL-Pointer-Dereference.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W55V-X588-C3JF

Vulnerability from github – Published: 2022-02-11 00:01 – Updated: 2025-05-05 18:31
VLAI
Details

NULL pointer dereference in the firmware for some Intel(R) Processors may allow a privileged user to potentially enable an escalation of privilege via local access.

Severity
6.7 (Medium)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2021-0111"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-02-09T23:15:00Z",
    "severity": "MODERATE"
  },
  "details": "NULL pointer dereference in the firmware for some Intel(R) Processors may allow a privileged user to potentially enable an escalation of privilege via local access.",
  "id": "GHSA-w55v-x588-c3jf",
  "modified": "2025-05-05T18:31:01Z",
  "published": "2022-02-11T00:01:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-0111"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20220210-0007"
    },
    {
      "type": "WEB",
      "url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00527.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W582-36RX-QPX6

Vulnerability from github – Published: 2026-05-02 12:31 – Updated: 2026-05-02 12:31
VLAI
Details

IEEE 802.11 protocol dissector crash in Wireshark 4.6.0 to 4.6.4

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2026-6525"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-02T12:16:16Z",
    "severity": "MODERATE"
  },
  "details": "IEEE 802.11 protocol dissector crash in Wireshark 4.6.0 to 4.6.4",
  "id": "GHSA-w582-36rx-qpx6",
  "modified": "2026-05-02T12:31:22Z",
  "published": "2026-05-02T12:31:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-6525"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/wireshark/wireshark/-/work_items/21008"
    },
    {
      "type": "WEB",
      "url": "https://www.wireshark.org/security/wnpa-sec-2026-36.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W59V-WH6Q-QC58

Vulnerability from github – Published: 2022-05-14 03:53 – Updated: 2022-05-14 03:53
VLAI
Details

GnuTLS version 3.5.12 and earlier is vulnerable to a NULL pointer dereference while decoding a status response TLS extension with valid contents. This could lead to a crash of the GnuTLS server application.

Severity
7.5 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2017-7507"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-06-16T19:29:00Z",
    "severity": "HIGH"
  },
  "details": "GnuTLS version 3.5.12 and earlier is vulnerable to a NULL pointer dereference while decoding a status response TLS extension with valid contents. This could lead to a crash of the GnuTLS server application.",
  "id": "GHSA-w59v-wh6q-qc58",
  "modified": "2022-05-14T03:53:46Z",
  "published": "2022-05-14T03:53:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-7507"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2017:2292"
    },
    {
      "type": "WEB",
      "url": "https://www.gnutls.org/security.html#GNUTLS-SA-2017-4"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2017/dsa-3884"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/99102"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W5C8-JH5M-R49F

Vulnerability from github – Published: 2022-05-14 01:53 – Updated: 2022-05-14 01:53
VLAI
Details

A ctl_set KERedirect Untrusted Pointer Dereference Privilege Escalation vulnerability in Trend Micro Antivirus for Mac (Consumer) 7.0 (2017) and above could allow a local attacker to escalate privileges on vulnerable installations. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

Severity
7.8 (High)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2018-15367"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-10-23T14:29:00Z",
    "severity": "HIGH"
  },
  "details": "A ctl_set KERedirect Untrusted Pointer Dereference Privilege Escalation vulnerability in Trend Micro Antivirus for Mac (Consumer) 7.0 (2017) and above could allow a local attacker to escalate privileges on vulnerable installations. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.",
  "id": "GHSA-w5c8-jh5m-r49f",
  "modified": "2022-05-14T01:53:43Z",
  "published": "2022-05-14T01:53:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-15367"
    },
    {
      "type": "WEB",
      "url": "https://esupport.trendmicro.com/en-US/home/pages/technical-support/1121296.aspx"
    },
    {
      "type": "WEB",
      "url": "https://esupport.trendmicro.com/solution/ja-jp/1121350.aspx"
    },
    {
      "type": "WEB",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-18-1294"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/105757"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W5FP-P5RQ-W697

Vulnerability from github – Published: 2024-02-23 15:30 – Updated: 2024-06-25 21:31
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

efivarfs: force RO when remounting if SetVariable is not supported

If SetVariable at runtime is not supported by the firmware we never assign a callback for that function. At the same time mount the efivarfs as RO so no one can call that. However, we never check the permission flags when someone remounts the filesystem as RW. As a result this leads to a crash looking like this:

$ mount -o remount,rw /sys/firmware/efi/efivars $ efi-updatevar -f PK.auth PK

[ 303.279166] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 303.280482] Mem abort info: [ 303.280854] ESR = 0x0000000086000004 [ 303.281338] EC = 0x21: IABT (current EL), IL = 32 bits [ 303.282016] SET = 0, FnV = 0 [ 303.282414] EA = 0, S1PTW = 0 [ 303.282821] FSC = 0x04: level 0 translation fault [ 303.283771] user pgtable: 4k pages, 48-bit VAs, pgdp=000000004258c000 [ 303.284913] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000 [ 303.286076] Internal error: Oops: 0000000086000004 [#1] PREEMPT SMP [ 303.286936] Modules linked in: qrtr tpm_tis tpm_tis_core crct10dif_ce arm_smccc_trng rng_core drm fuse ip_tables x_tables ipv6 [ 303.288586] CPU: 1 PID: 755 Comm: efi-updatevar Not tainted 6.3.0-rc1-00108-gc7d0c4695c68 #1 [ 303.289748] Hardware name: Unknown Unknown Product/Unknown Product, BIOS 2023.04-00627-g88336918701d 04/01/2023 [ 303.291150] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 303.292123] pc : 0x0 [ 303.292443] lr : efivar_set_variable_locked+0x74/0xec [ 303.293156] sp : ffff800008673c10 [ 303.293619] x29: ffff800008673c10 x28: ffff0000037e8000 x27: 0000000000000000 [ 303.294592] x26: 0000000000000800 x25: ffff000002467400 x24: 0000000000000027 [ 303.295572] x23: ffffd49ea9832000 x22: ffff0000020c9800 x21: ffff000002467000 [ 303.296566] x20: 0000000000000001 x19: 00000000000007fc x18: 0000000000000000 [ 303.297531] x17: 0000000000000000 x16: 0000000000000000 x15: 0000aaaac807ab54 [ 303.298495] x14: ed37489f673633c0 x13: 71c45c606de13f80 x12: 47464259e219acf4 [ 303.299453] x11: ffff000002af7b01 x10: 0000000000000003 x9 : 0000000000000002 [ 303.300431] x8 : 0000000000000010 x7 : ffffd49ea8973230 x6 : 0000000000a85201 [ 303.301412] x5 : 0000000000000000 x4 : ffff0000020c9800 x3 : 00000000000007fc [ 303.302370] x2 : 0000000000000027 x1 : ffff000002467400 x0 : ffff000002467000 [ 303.303341] Call trace: [ 303.303679] 0x0 [ 303.303938] efivar_entry_set_get_size+0x98/0x16c [ 303.304585] efivarfs_file_write+0xd0/0x1a4 [ 303.305148] vfs_write+0xc4/0x2e4 [ 303.305601] ksys_write+0x70/0x104 [ 303.306073] __arm64_sys_write+0x1c/0x28 [ 303.306622] invoke_syscall+0x48/0x114 [ 303.307156] el0_svc_common.constprop.0+0x44/0xec [ 303.307803] do_el0_svc+0x38/0x98 [ 303.308268] el0_svc+0x2c/0x84 [ 303.308702] el0t_64_sync_handler+0xf4/0x120 [ 303.309293] el0t_64_sync+0x190/0x194 [ 303.309794] Code: ???????? ???????? ???????? ???????? (????????) [ 303.310612] ---[ end trace 0000000000000000 ]---

Fix this by adding a .reconfigure() function to the fs operations which we can use to check the requested flags and deny anything that's not RO if the firmware doesn't implement SetVariable at runtime.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2023-52463"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-23T15:15:08Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nefivarfs: force RO when remounting if SetVariable is not supported\n\nIf SetVariable at runtime is not supported by the firmware we never assign\na callback for that function. At the same time mount the efivarfs as\nRO so no one can call that.  However, we never check the permission flags\nwhen someone remounts the filesystem as RW. As a result this leads to a\ncrash looking like this:\n\n$ mount -o remount,rw /sys/firmware/efi/efivars\n$ efi-updatevar -f PK.auth PK\n\n[  303.279166] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000\n[  303.280482] Mem abort info:\n[  303.280854]   ESR = 0x0000000086000004\n[  303.281338]   EC = 0x21: IABT (current EL), IL = 32 bits\n[  303.282016]   SET = 0, FnV = 0\n[  303.282414]   EA = 0, S1PTW = 0\n[  303.282821]   FSC = 0x04: level 0 translation fault\n[  303.283771] user pgtable: 4k pages, 48-bit VAs, pgdp=000000004258c000\n[  303.284913] [0000000000000000] pgd=0000000000000000, p4d=0000000000000000\n[  303.286076] Internal error: Oops: 0000000086000004 [#1] PREEMPT SMP\n[  303.286936] Modules linked in: qrtr tpm_tis tpm_tis_core crct10dif_ce arm_smccc_trng rng_core drm fuse ip_tables x_tables ipv6\n[  303.288586] CPU: 1 PID: 755 Comm: efi-updatevar Not tainted 6.3.0-rc1-00108-gc7d0c4695c68 #1\n[  303.289748] Hardware name: Unknown Unknown Product/Unknown Product, BIOS 2023.04-00627-g88336918701d 04/01/2023\n[  303.291150] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[  303.292123] pc : 0x0\n[  303.292443] lr : efivar_set_variable_locked+0x74/0xec\n[  303.293156] sp : ffff800008673c10\n[  303.293619] x29: ffff800008673c10 x28: ffff0000037e8000 x27: 0000000000000000\n[  303.294592] x26: 0000000000000800 x25: ffff000002467400 x24: 0000000000000027\n[  303.295572] x23: ffffd49ea9832000 x22: ffff0000020c9800 x21: ffff000002467000\n[  303.296566] x20: 0000000000000001 x19: 00000000000007fc x18: 0000000000000000\n[  303.297531] x17: 0000000000000000 x16: 0000000000000000 x15: 0000aaaac807ab54\n[  303.298495] x14: ed37489f673633c0 x13: 71c45c606de13f80 x12: 47464259e219acf4\n[  303.299453] x11: ffff000002af7b01 x10: 0000000000000003 x9 : 0000000000000002\n[  303.300431] x8 : 0000000000000010 x7 : ffffd49ea8973230 x6 : 0000000000a85201\n[  303.301412] x5 : 0000000000000000 x4 : ffff0000020c9800 x3 : 00000000000007fc\n[  303.302370] x2 : 0000000000000027 x1 : ffff000002467400 x0 : ffff000002467000\n[  303.303341] Call trace:\n[  303.303679]  0x0\n[  303.303938]  efivar_entry_set_get_size+0x98/0x16c\n[  303.304585]  efivarfs_file_write+0xd0/0x1a4\n[  303.305148]  vfs_write+0xc4/0x2e4\n[  303.305601]  ksys_write+0x70/0x104\n[  303.306073]  __arm64_sys_write+0x1c/0x28\n[  303.306622]  invoke_syscall+0x48/0x114\n[  303.307156]  el0_svc_common.constprop.0+0x44/0xec\n[  303.307803]  do_el0_svc+0x38/0x98\n[  303.308268]  el0_svc+0x2c/0x84\n[  303.308702]  el0t_64_sync_handler+0xf4/0x120\n[  303.309293]  el0t_64_sync+0x190/0x194\n[  303.309794] Code: ???????? ???????? ???????? ???????? (????????)\n[  303.310612] ---[ end trace 0000000000000000 ]---\n\nFix this by adding a .reconfigure() function to the fs operations which\nwe can use to check the requested flags and deny anything that\u0027s not RO\nif the firmware doesn\u0027t implement SetVariable at runtime.",
  "id": "GHSA-w5fp-p5rq-w697",
  "modified": "2024-06-25T21:31:11Z",
  "published": "2024-02-23T15:30:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52463"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0049fe7e4a85849bdd778cdb72e51a791ff3d737"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0e8d2444168dd519fea501599d150e62718ed2fe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2aa141f8bc580f8f9811dfe4e0e6009812b73826"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/94c742324ed7e42c5bd6a9ed22e4ec6d764db4d8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d4a714873db0866cc471521114eeac4a5072d548"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d4a9aa7db574a0da64307729cc031fb68597aa8b"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W5G2-4RXC-H7X8

Vulnerability from github – Published: 2024-03-25 12:30 – Updated: 2024-05-16 21:31
VLAI
Details

In the Linux kernel, the following vulnerability has been resolved:

NFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return()

Commit de144ff4234f changes _pnfs_return_layout() to call pnfs_mark_matching_lsegs_return() passing NULL as the struct pnfs_layout_range argument. Unfortunately, pnfs_mark_matching_lsegs_return() doesn't check if we have a value here before dereferencing it, causing an oops.

I'm able to hit this crash consistently when running connectathon basic tests on NFS v4.1/v4.2 against Ontap.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2021-47179"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-25T10:15:09Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFSv4: Fix a NULL pointer dereference in pnfs_mark_matching_lsegs_return()\n\nCommit de144ff4234f changes _pnfs_return_layout() to call\npnfs_mark_matching_lsegs_return() passing NULL as the struct\npnfs_layout_range argument. Unfortunately,\npnfs_mark_matching_lsegs_return() doesn\u0027t check if we have a value here\nbefore dereferencing it, causing an oops.\n\nI\u0027m able to hit this crash consistently when running connectathon basic\ntests on NFS v4.1/v4.2 against Ontap.",
  "id": "GHSA-w5g2-4rxc-h7x8",
  "modified": "2024-05-16T21:31:56Z",
  "published": "2024-03-25T12:30:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47179"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/39785761feadf261bc5101372b0b0bbaf6a94494"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/42637ca25c7d7b5a92804a679af5192e8c1a9f48"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4e1ba532dbc1a0e19fc2458d74ab8d98680c4e42"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a421d218603ffa822a0b8045055c03eae394a7eb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aba3c7795f51717ae316f3566442dee7cc3eeccb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b090d110e66636bca473fd8b98d5c97b555a965a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f9890652185b72b8de9ebeb4406037640b6e1b53"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-W5GW-948H-GPGM

Vulnerability from github – Published: 2023-03-06 09:30 – Updated: 2023-03-11 06:30
VLAI
Details

A vulnerability has been found in FabulaTech Webcam for Remote Desktop 2.8.42 and classified as problematic. This vulnerability affects unknown code in the library ftwebcam.sys of the component IoControlCode Handler. The manipulation leads to null pointer dereference. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. VDB-222358 is the identifier assigned to this vulnerability.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2023-1186"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-03-06T08:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A vulnerability has been found in FabulaTech Webcam for Remote Desktop 2.8.42 and classified as problematic. This vulnerability affects unknown code in the library ftwebcam.sys of the component IoControlCode Handler. The manipulation leads to null pointer dereference. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. VDB-222358 is the identifier assigned to this vulnerability.",
  "id": "GHSA-w5gw-948h-gpgm",
  "modified": "2023-03-11T06:30:17Z",
  "published": "2023-03-06T09:30:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-1186"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zeze-zeze/WindowsKernelVuln/tree/master/CVE-2023-1186"
    },
    {
      "type": "WEB",
      "url": "https://github.com/zeze-zeze/WindowsKernelVuln/tree/master/unassigned6"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?ctiid.222358"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/?id.222358"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}
Mitigation MIT-56
Implementation

For any pointers that could have been modified or provided from a function that can return NULL, check the pointer for NULL before use. When working with a multithreaded or otherwise asynchronous environment, ensure that proper locking APIs are used to lock before the check, and unlock when it has finished [REF-1484].

Mitigation
Requirements

Select a programming language that is not susceptible to these issues.

Mitigation
Implementation

Check the results of all functions that return a value and verify that the value is non-null before acting upon it.

Mitigation
Architecture and Design

Identify all variables and data stores that receive information from external sources, and apply input validation to make sure that they are only initialized to expected values.

Mitigation
Implementation

Explicitly initialize all variables and other data stores, either during declaration or just before the first usage.

No CAPEC attack patterns related to this CWE.

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