CWE-476
AllowedNULL Pointer Dereference
Abstraction: Base · Status: Stable
The product dereferences a pointer that it expects to be valid but is NULL.
6334 vulnerabilities reference this CWE, most recent first.
GHSA-FF2P-6RHF-QVM3
Vulnerability from github – Published: 2022-05-13 01:02 – Updated: 2022-05-13 01:02An issue was discovered in Tcpreplay 4.3.1. A NULL pointer dereference occurred in the function get_layer4_v6() located at get.c. This can be triggered by sending a crafted pcap file to the tcpreplay-edit binary. It allows an attacker to cause a Denial of Service (Segmentation fault) or possibly have unspecified other impact.
{
"affected": [],
"aliases": [
"CVE-2019-8376"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-02-17T02:29:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in Tcpreplay 4.3.1. A NULL pointer dereference occurred in the function get_layer4_v6() located at get.c. This can be triggered by sending a crafted pcap file to the tcpreplay-edit binary. It allows an attacker to cause a Denial of Service (Segmentation fault) or possibly have unspecified other impact.",
"id": "GHSA-ff2p-6rhf-qvm3",
"modified": "2022-05-13T01:02:42Z",
"published": "2022-05-13T01:02:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-8376"
},
{
"type": "WEB",
"url": "https://github.com/appneta/tcpreplay/issues/537"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4V3SADKXUSHWTVAPU3WLXBDEQUHRA6ZO"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EB3ASS7URTIA3IFSBL2DIWJAFKTBJCAW"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MLPY6W7Z7G6PF2JN4LXXHCACYLD4RBG6"
},
{
"type": "WEB",
"url": "https://research.loginsoft.com/bugs/null-pointer-dereference-vulnerability-in-function-get_layer4_v6-tcpreplay-4-3-1"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/107085"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FF34-97H6-85XV
Vulnerability from github – Published: 2023-01-05 15:30 – Updated: 2023-01-11 21:30GPAC MP4box 2.1-DEV-rev574-g9d5bb184b is vulnerable to Null pointer dereference via filters/dmx_m2ts.c:343 in m2tsdmx_declare_pid
{
"affected": [],
"aliases": [
"CVE-2022-47094"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-01-05T15:15:00Z",
"severity": "HIGH"
},
"details": "GPAC MP4box 2.1-DEV-rev574-g9d5bb184b is vulnerable to Null pointer dereference via filters/dmx_m2ts.c:343 in m2tsdmx_declare_pid",
"id": "GHSA-ff34-97h6-85xv",
"modified": "2023-01-11T21:30:42Z",
"published": "2023-01-05T15:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-47094"
},
{
"type": "WEB",
"url": "https://github.com/gpac/gpac/issues/2345"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2023/dsa-5411"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FF4J-XJHX-JPXP
Vulnerability from github – Published: 2025-09-23 21:30 – Updated: 2025-09-23 21:30In the Linux kernel, the following vulnerability has been resolved:
ASoC: soc-compress: prevent the potentially use of null pointer
There is one call trace that snd_soc_register_card() ->snd_soc_bind_card()->soc_init_pcm_runtime() ->snd_soc_dai_compress_new()->snd_soc_new_compress(). In the trace the 'codec_dai' transfers from card->dai_link, and we can see from the snd_soc_add_pcm_runtime() in snd_soc_bind_card() that, if value of card->dai_link->num_codecs is 0, then 'codec_dai' could be null pointer caused by index out of bound in 'asoc_rtd_to_codec(rtd, 0)'. And snd_soc_register_card() is called by various platforms. Therefore, it is better to add the check in the case of misusing. And because 'cpu_dai' has already checked in soc_init_pcm_runtime(), there is no need to check again. Adding the check as follow, then if 'codec_dai' is null, snd_soc_new_compress() will not pass through the check 'if (playback + capture != 1)', avoiding the leftover use of 'codec_dai'.
{
"affected": [],
"aliases": [
"CVE-2021-47650"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-26T06:37:06Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: soc-compress: prevent the potentially use of null pointer\n\nThere is one call trace that snd_soc_register_card()\n-\u003esnd_soc_bind_card()-\u003esoc_init_pcm_runtime()\n-\u003esnd_soc_dai_compress_new()-\u003esnd_soc_new_compress().\nIn the trace the \u0027codec_dai\u0027 transfers from card-\u003edai_link,\nand we can see from the snd_soc_add_pcm_runtime() in\nsnd_soc_bind_card() that, if value of card-\u003edai_link-\u003enum_codecs\nis 0, then \u0027codec_dai\u0027 could be null pointer caused\nby index out of bound in \u0027asoc_rtd_to_codec(rtd, 0)\u0027.\nAnd snd_soc_register_card() is called by various platforms.\nTherefore, it is better to add the check in the case of misusing.\nAnd because \u0027cpu_dai\u0027 has already checked in soc_init_pcm_runtime(),\nthere is no need to check again.\nAdding the check as follow, then if \u0027codec_dai\u0027 is null,\nsnd_soc_new_compress() will not pass through the check\n\u0027if (playback + capture != 1)\u0027, avoiding the leftover use of\n\u0027codec_dai\u0027.",
"id": "GHSA-ff4j-xjhx-jpxp",
"modified": "2025-09-23T21:30:54Z",
"published": "2025-09-23T21:30:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47650"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/08af6da684b44097ea09f1d74d5858b837ed203b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4639c1d97f385f4784f44d66a3da0672f4951ada"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/68a69ad8df959e5211ed4a8e120783b2d352ea74"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/de2c6f98817fa5decb9b7d3b3a8a3ab864c10588"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f69a75cb8a98c6c487d620442c68595726a69f60"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fc237b8d624f4bcb0f21a532627ce4e3b3a85569"
}
],
"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-FF5F-2MH8-CFFP
Vulnerability from github – Published: 2026-01-14 15:33 – Updated: 2026-03-25 21:30In the Linux kernel, the following vulnerability has been resolved:
ACPICA: Avoid walking the Namespace if start_node is NULL
Although commit 0c9992315e73 ("ACPICA: Avoid walking the ACPI Namespace if it is not there") fixed the situation when both start_node and acpi_gbl_root_node are NULL, the Linux kernel mainline now still crashed on Honor Magicbook 14 Pro [1].
That happens due to the access to the member of parent_node in acpi_ns_get_next_node(). The NULL pointer dereference will always happen, no matter whether or not the start_node is equal to ACPI_ROOT_OBJECT, so move the check of start_node being NULL out of the if block.
Unfortunately, all the attempts to contact Honor have failed, they refused to provide any technical support for Linux.
The bad DSDT table's dump could be found on GitHub [2].
DMI: HONOR FMB-P/FMB-P-PCB, BIOS 1.13 05/08/2025
[ rjw: Subject adjustment, changelog edits ]
{
"affected": [],
"aliases": [
"CVE-2025-71118"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-14T15:16:01Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPICA: Avoid walking the Namespace if start_node is NULL\n\nAlthough commit 0c9992315e73 (\"ACPICA: Avoid walking the ACPI Namespace\nif it is not there\") fixed the situation when both start_node and\nacpi_gbl_root_node are NULL, the Linux kernel mainline now still crashed\non Honor Magicbook 14 Pro [1].\n\nThat happens due to the access to the member of parent_node in\nacpi_ns_get_next_node(). The NULL pointer dereference will always\nhappen, no matter whether or not the start_node is equal to\nACPI_ROOT_OBJECT, so move the check of start_node being NULL\nout of the if block.\n\nUnfortunately, all the attempts to contact Honor have failed, they\nrefused to provide any technical support for Linux.\n\nThe bad DSDT table\u0027s dump could be found on GitHub [2].\n\nDMI: HONOR FMB-P/FMB-P-PCB, BIOS 1.13 05/08/2025\n\n[ rjw: Subject adjustment, changelog edits ]",
"id": "GHSA-ff5f-2mh8-cffp",
"modified": "2026-03-25T21:30:22Z",
"published": "2026-01-14T15:33:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71118"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0d8bb08126920fd4b12dbf32d9250757c9064b36"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1bc34293dfbd266c29875206849b4f8e8177e6df"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7f9b951ed11842373851dd3c91860778356d62d3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9d6c58dae8f6590c746ac5d0012ffe14a77539f0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b84edef48cc8afb41150949a87dcfa81bc95b53e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ecb296286c8787895625bd4c53e9478db4ae139c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f91dad0a3b381244183ffbea4cec5a7a69d6f41e"
}
],
"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-FF6P-VV4F-9933
Vulnerability from github – Published: 2025-09-22 21:30 – Updated: 2025-09-22 21:30In the Linux kernel, the following vulnerability has been resolved:
iwlwifi: mei: fix potential NULL-ptr deref
If SKB allocation fails, continue rather than using the NULL pointer.
Coverity CID: 1497650
{
"affected": [],
"aliases": [
"CVE-2022-49417"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-26T07:01:18Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\niwlwifi: mei: fix potential NULL-ptr deref\n\nIf SKB allocation fails, continue rather than using the NULL\npointer.\n\nCoverity CID: 1497650",
"id": "GHSA-ff6p-vv4f-9933",
"modified": "2025-09-22T21:30:17Z",
"published": "2025-09-22T21:30:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49417"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/29b81de94d62b5e2704bb5106b3e701ca8d7c7a4"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/5d8d06fd3a02919100b28f927bcb76481ec0a0e3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/78488a64aea94a3336ee97f345c1496e9bc5ebdf"
}
],
"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-FFFG-X79M-65GR
Vulnerability from github – Published: 2023-04-11 12:30 – Updated: 2023-04-14 18:30In telecom service, there is a missing permission check. This could lead to local denial of service in telecom service.
{
"affected": [],
"aliases": [
"CVE-2022-47467"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-04-11T12:15:00Z",
"severity": "MODERATE"
},
"details": "In telecom service, there is a missing permission check. This could lead to local denial of service in telecom service.",
"id": "GHSA-fffg-x79m-65gr",
"modified": "2023-04-14T18:30:19Z",
"published": "2023-04-11T12:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-47467"
},
{
"type": "WEB",
"url": "https://www.unisoc.com/en_us/secy/announcementDetail/1645429273135218690"
}
],
"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-FFG3-HH5Q-JQ5V
Vulnerability from github – Published: 2022-05-13 01:27 – Updated: 2022-05-13 01:27In Wireshark 2.6.0 to 2.6.3 and 2.4.0 to 2.4.9, the MS-WSP protocol dissector could crash. This was addressed in epan/dissectors/packet-mswsp.c by properly handling NULL return values.
{
"affected": [],
"aliases": [
"CVE-2018-18227"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-10-12T06:29:00Z",
"severity": "HIGH"
},
"details": "In Wireshark 2.6.0 to 2.6.3 and 2.4.0 to 2.4.9, the MS-WSP protocol dissector could crash. This was addressed in epan/dissectors/packet-mswsp.c by properly handling NULL return values.",
"id": "GHSA-ffg3-hh5q-jq5v",
"modified": "2022-05-13T01:27:50Z",
"published": "2022-05-13T01:27:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-18227"
},
{
"type": "WEB",
"url": "https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15119"
},
{
"type": "WEB",
"url": "https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=d443be449a52f95df5754adc39e1f3472fec2f03"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2018/dsa-4359"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuapr2020.html"
},
{
"type": "WEB",
"url": "https://www.wireshark.org/security/wnpa-sec-2018-47.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/105583"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1041909"
}
],
"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-FFG8-FGFP-Q9P2
Vulnerability from github – Published: 2022-05-14 03:23 – Updated: 2022-05-14 03:23The pushdup function in util/decompile.c in libming through 0.4.8 does not recognize the need for ActionPushDuplicate to perform a deep copy when a String is at the top of the stack, making the library vulnerable to a util/decompile.c getName NULL pointer dereference, which may allow attackers to cause a denial of service via a crafted SWF file.
{
"affected": [],
"aliases": [
"CVE-2018-9165"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-04-01T18:29:00Z",
"severity": "MODERATE"
},
"details": "The pushdup function in util/decompile.c in libming through 0.4.8 does not recognize the need for ActionPushDuplicate to perform a deep copy when a String is at the top of the stack, making the library vulnerable to a util/decompile.c getName NULL pointer dereference, which may allow attackers to cause a denial of service via a crafted SWF file.",
"id": "GHSA-ffg8-fgfp-q9p2",
"modified": "2022-05-14T03:23:44Z",
"published": "2022-05-14T03:23:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-9165"
},
{
"type": "WEB",
"url": "https://github.com/libming/libming/issues/121"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2018/04/msg00008.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FFM3-MGFP-9VC6
Vulnerability from github – Published: 2022-05-17 02:55 – Updated: 2025-04-20 03:34The PoDoFo::PdfColor::operator function in PdfColor.cpp in PoDoFo 0.9.4 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted file.
{
"affected": [],
"aliases": [
"CVE-2017-6845"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-03-15T14:59:00Z",
"severity": "MODERATE"
},
"details": "The PoDoFo::PdfColor::operator function in PdfColor.cpp in PoDoFo 0.9.4 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted file.",
"id": "GHSA-ffm3-mgfp-9vc6",
"modified": "2025-04-20T03:34:08Z",
"published": "2022-05-17T02:55:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-6845"
},
{
"type": "WEB",
"url": "https://blogs.gentoo.org/ago/2017/03/02/podofo-null-pointer-dereference-in-podofopdfcoloroperator-pdfcolor-cpp"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-FFPM-GQ7J-8X7R
Vulnerability from github – Published: 2024-06-19 15:30 – Updated: 2026-05-12 12:31In the Linux kernel, the following vulnerability has been resolved:
media: atomisp: ssh_css: Fix a null-pointer dereference in load_video_binaries
The allocation failure of mycs->yuv_scaler_binary in load_video_binaries() is followed with a dereference of mycs->yuv_scaler_binary after the following call chain:
sh_css_pipe_load_binaries() |-> load_video_binaries(mycs->yuv_scaler_binary == NULL) | |-> sh_css_pipe_unload_binaries() |-> unload_video_binaries()
In unload_video_binaries(), it calls to ia_css_binary_unload with argument &pipe->pipe_settings.video.yuv_scaler_binary[i], which refers to the same memory slot as mycs->yuv_scaler_binary. Thus, a null-pointer dereference is triggered.
{
"affected": [],
"aliases": [
"CVE-2024-38547"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-06-19T14:15:14Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: atomisp: ssh_css: Fix a null-pointer dereference in load_video_binaries\n\nThe allocation failure of mycs-\u003eyuv_scaler_binary in load_video_binaries()\nis followed with a dereference of mycs-\u003eyuv_scaler_binary after the\nfollowing call chain:\n\nsh_css_pipe_load_binaries()\n |-\u003e load_video_binaries(mycs-\u003eyuv_scaler_binary == NULL)\n |\n |-\u003e sh_css_pipe_unload_binaries()\n |-\u003e unload_video_binaries()\n\nIn unload_video_binaries(), it calls to ia_css_binary_unload with argument\n\u0026pipe-\u003epipe_settings.video.yuv_scaler_binary[i], which refers to the\nsame memory slot as mycs-\u003eyuv_scaler_binary. Thus, a null-pointer\ndereference is triggered.",
"id": "GHSA-ffpm-gq7j-8x7r",
"modified": "2026-05-12T12:31:54Z",
"published": "2024-06-19T15:30:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-38547"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3b621e9e9e148c0928ab109ac3d4b81487469acb"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/4b68b861b514a5c09220d622ac3784c0ebac6c80"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/51b8dc5163d2ff2bf04019f8bf7e3bd0e75bb654"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6482c433863b257b0b9b687c28ce80b89d5f89f0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/69b27ff82f87379afeaaea4b2f339032fdd8486e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/82c2c85aead3ea3cbceef4be077cf459c5df2272"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a1ab99dcc8604afe7e3bccb01b10da03bdd7ea35"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cc20c87b04db86c8e3e810bcdca686b406206069"
}
],
"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
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
Select a programming language that is not susceptible to these issues.
Mitigation
Check the results of all functions that return a value and verify that the value is non-null before acting upon it.
Mitigation
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
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.