CWE-476
AllowedNULL Pointer Dereference
Abstraction: Base · Status: Stable
The product dereferences a pointer that it expects to be valid but is NULL.
6350 vulnerabilities reference this CWE, most recent first.
GHSA-5F42-CQ3C-QRM7
Vulnerability from github – Published: 2022-05-24 17:01 – Updated: 2022-05-24 17:01fs/btrfs/volumes.c in the Linux kernel before 5.1 allows a btrfs_verify_dev_extents NULL pointer dereference via a crafted btrfs image because fs_devices->devices is mishandled within find_device, aka CID-09ba3bc9dd15.
{
"affected": [],
"aliases": [
"CVE-2019-18885"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-11-14T14:15:00Z",
"severity": "LOW"
},
"details": "fs/btrfs/volumes.c in the Linux kernel before 5.1 allows a btrfs_verify_dev_extents NULL pointer dereference via a crafted btrfs image because fs_devices-\u003edevices is mishandled within find_device, aka CID-09ba3bc9dd15.",
"id": "GHSA-5f42-cq3c-qrm7",
"modified": "2022-05-24T17:01:18Z",
"published": "2022-05-24T17:01:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-18885"
},
{
"type": "WEB",
"url": "https://github.com/torvalds/linux/commit/09ba3bc9dd150457c506e4661380a6183af651c1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=09ba3bc9dd150457c506e4661380a6183af651c1"
},
{
"type": "WEB",
"url": "https://github.com/bobfuzzer/CVE-2019-18885"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00019.html"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20191205-0001"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4254-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4254-2"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4258-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4287-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/4287-2"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/156185/Kernel-Live-Patch-Security-Notice-LSN-0062-1.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-5F4V-RCV7-7FMJ
Vulnerability from github – Published: 2022-05-14 03:38 – Updated: 2025-04-20 03:46The keyctl_read_key function in security/keys/keyctl.c in the Key Management subcomponent in the Linux kernel before 4.13.5 does not properly consider that a key may be possessed but negatively instantiated, which allows local users to cause a denial of service (OOPS and system crash) via a crafted KEYCTL_READ operation.
{
"affected": [],
"aliases": [
"CVE-2017-12192"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-10-12T00:29:00Z",
"severity": "MODERATE"
},
"details": "The keyctl_read_key function in security/keys/keyctl.c in the Key Management subcomponent in the Linux kernel before 4.13.5 does not properly consider that a key may be possessed but negatively instantiated, which allows local users to cause a denial of service (OOPS and system crash) via a crafted KEYCTL_READ operation.",
"id": "GHSA-5f4v-rcv7-7fmj",
"modified": "2025-04-20T03:46:39Z",
"published": "2022-05-14T03:38:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-12192"
},
{
"type": "WEB",
"url": "https://github.com/torvalds/linux/commit/37863c43b2c6464f252862bf2e9768264e961678"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:0151"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:0152"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:0181"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:0654"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2020:2430"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2017-12192"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1493435"
},
{
"type": "WEB",
"url": "https://lkml.org/lkml/2017/9/18/764"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3583-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3583-2"
},
{
"type": "WEB",
"url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=37863c43b2c6464f252862bf2e9768264e961678"
},
{
"type": "WEB",
"url": "http://seclists.org/oss-sec/2017/q4/63"
},
{
"type": "WEB",
"url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5F75-4873-QCW8
Vulnerability from github – Published: 2022-06-03 00:01 – Updated: 2022-06-11 00:00In libjpeg 1.63, there is a NULL pointer dereference in LineBuffer::FetchRegion in linebuffer.cpp.
{
"affected": [],
"aliases": [
"CVE-2022-32202"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-06-02T14:16:00Z",
"severity": "MODERATE"
},
"details": "In libjpeg 1.63, there is a NULL pointer dereference in LineBuffer::FetchRegion in linebuffer.cpp.",
"id": "GHSA-5f75-4873-qcw8",
"modified": "2022-06-11T00:00:28Z",
"published": "2022-06-03T00:01:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-32202"
},
{
"type": "WEB",
"url": "https://github.com/thorfdbg/libjpeg/issues/74"
},
{
"type": "WEB",
"url": "https://github.com/thorfdbg/libjpeg/commit/51c3241b6da39df30f016b63f43f31c4011222c7"
}
],
"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-5F77-76R3-QF34
Vulnerability from github – Published: 2022-05-24 16:55 – Updated: 2024-04-04 01:54Onigmo through 6.2.0 has a NULL pointer dereference in onig_error_code_to_str because of fetch_token in regparse.c.
{
"affected": [],
"aliases": [
"CVE-2019-16161"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-09-09T17:15:00Z",
"severity": "HIGH"
},
"details": "Onigmo through 6.2.0 has a NULL pointer dereference in onig_error_code_to_str because of fetch_token in regparse.c.",
"id": "GHSA-5f77-76r3-qf34",
"modified": "2024-04-04T01:54:09Z",
"published": "2022-05-24T16:55:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-16161"
},
{
"type": "WEB",
"url": "https://github.com/k-takata/Onigmo/issues/132"
},
{
"type": "WEB",
"url": "https://github.com/k-takata/Onigmo/commit/9827d5a0298ee766f6041db9c0080166ff6cdce8"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5F8W-QVC2-2V3P
Vulnerability from github – Published: 2026-03-16 15:30 – Updated: 2026-03-16 15:30arduino-TuyaOpen before version 1.2.1 contains a null pointer dereference vulnerability in the WiFiUDP component. An attacker on the same local area network can send a large volume of malicious UDP packets to cause memory exhaustion on the device, triggering a null pointer dereference and resulting in a denial-of-service condition.
{
"affected": [],
"aliases": [
"CVE-2026-28522"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-16T14:19:28Z",
"severity": "HIGH"
},
"details": "arduino-TuyaOpen before version 1.2.1 contains a null pointer dereference vulnerability in the WiFiUDP component. An attacker on the same local area network can send a large volume of malicious UDP packets to cause memory exhaustion on the device, triggering a null pointer dereference and resulting in a denial-of-service condition.",
"id": "GHSA-5f8w-qvc2-2v3p",
"modified": "2026-03-16T15:30:42Z",
"published": "2026-03-16T15:30:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28522"
},
{
"type": "WEB",
"url": "https://github.com/tuya/arduino-TuyaOpen"
},
{
"type": "WEB",
"url": "https://src.tuya.com/announcement/32"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/arduino-tuyaopen-wifiudp-null-pointer-dereference-denial-of-service"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-5F9P-9995-R2RV
Vulnerability from github – Published: 2024-05-19 12:30 – Updated: 2024-10-31 15:30In the Linux kernel, the following vulnerability has been resolved:
media: mediatek: vcodec: adding lock to protect encoder context list
Add a lock for the ctx_list, to avoid accessing a NULL pointer within the 'vpu_enc_ipi_handler' function when the ctx_list has been deleted due to an unexpected behavior on the SCP IP block.
{
"affected": [],
"aliases": [
"CVE-2024-35919"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-19T11:15:48Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: mediatek: vcodec: adding lock to protect encoder context list\n\nAdd a lock for the ctx_list, to avoid accessing a NULL pointer\nwithin the \u0027vpu_enc_ipi_handler\u0027 function when the ctx_list has\nbeen deleted due to an unexpected behavior on the SCP IP block.",
"id": "GHSA-5f9p-9995-r2rv",
"modified": "2024-10-31T15:30:58Z",
"published": "2024-05-19T12:30:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-35919"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/41671f0c0182b2bae74ca7e3b0f155559e3e2fc5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/51c84a8aac6e3b59af2b0e92ba63cabe2e641a2d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/afaaf3a0f647a24a7bf6a2145d8ade37baaf75ad"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5FCM-588G-HV9P
Vulnerability from github – Published: 2022-05-24 19:15 – Updated: 2022-05-24 19:15An issue was discovered in swftools through 20200710. A NULL pointer dereference exists in the function namespace_set_hash() located in pool.c. It allows an attacker to cause Denial of Service.
{
"affected": [],
"aliases": [
"CVE-2021-39584"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-09-20T16:15:00Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in swftools through 20200710. A NULL pointer dereference exists in the function namespace_set_hash() located in pool.c. It allows an attacker to cause Denial of Service.",
"id": "GHSA-5fcm-588g-hv9p",
"modified": "2022-05-24T19:15:05Z",
"published": "2022-05-24T19:15:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-39584"
},
{
"type": "WEB",
"url": "https://github.com/matthiaskramm/swftools/issues/130"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-5FCV-VWGV-JRCX
Vulnerability from github – Published: 2025-05-01 15:31 – Updated: 2025-11-07 21:31In the Linux kernel, the following vulnerability has been resolved:
ftrace: Fix null pointer dereference in ftrace_add_mod()
The @ftrace_mod is allocated by kzalloc(), so both the members {prev,next} of @ftrace_mode->list are NULL, it's not a valid state to call list_del(). If kstrdup() for @ftrace_mod->{func|module} fails, it goes to @out_free tag and calls free_ftrace_mod() to destroy @ftrace_mod, then list_del() will write prev->next and next->prev, where null pointer dereference happens.
BUG: kernel NULL pointer dereference, address: 0000000000000008 Oops: 0002 [#1] PREEMPT SMP NOPTI Call Trace: ftrace_mod_callback+0x20d/0x220 ? do_filp_open+0xd9/0x140 ftrace_process_regex.isra.51+0xbf/0x130 ftrace_regex_write.isra.52.part.53+0x6e/0x90 vfs_write+0xee/0x3a0 ? __audit_filter_op+0xb1/0x100 ? auditd_test_task+0x38/0x50 ksys_write+0xa5/0xe0 do_syscall_64+0x3a/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd Kernel panic - not syncing: Fatal exception
So call INIT_LIST_HEAD() to initialize the list member to fix this issue.
{
"affected": [],
"aliases": [
"CVE-2022-49802"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-01T15:16:03Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Fix null pointer dereference in ftrace_add_mod()\n\nThe @ftrace_mod is allocated by kzalloc(), so both the members {prev,next}\nof @ftrace_mode-\u003elist are NULL, it\u0027s not a valid state to call list_del().\nIf kstrdup() for @ftrace_mod-\u003e{func|module} fails, it goes to @out_free\ntag and calls free_ftrace_mod() to destroy @ftrace_mod, then list_del()\nwill write prev-\u003enext and next-\u003eprev, where null pointer dereference\nhappens.\n\nBUG: kernel NULL pointer dereference, address: 0000000000000008\nOops: 0002 [#1] PREEMPT SMP NOPTI\nCall Trace:\n \u003cTASK\u003e\n ftrace_mod_callback+0x20d/0x220\n ? do_filp_open+0xd9/0x140\n ftrace_process_regex.isra.51+0xbf/0x130\n ftrace_regex_write.isra.52.part.53+0x6e/0x90\n vfs_write+0xee/0x3a0\n ? __audit_filter_op+0xb1/0x100\n ? auditd_test_task+0x38/0x50\n ksys_write+0xa5/0xe0\n do_syscall_64+0x3a/0x90\n entry_SYSCALL_64_after_hwframe+0x63/0xcd\nKernel panic - not syncing: Fatal exception\n\nSo call INIT_LIST_HEAD() to initialize the list member to fix this issue.",
"id": "GHSA-5fcv-vwgv-jrcx",
"modified": "2025-11-07T21:31:19Z",
"published": "2025-05-01T15:31:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49802"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/19ba6c8af9382c4c05dc6a0a79af3013b9a35cd0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1bea037a1abb23a6729bef36a2265a4565f5ea77"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/665b4c6648bf2b91f69b33817f4321cf4c3cafe9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6a14828caddad0d989495a72af678adf60992704"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6e50eb4b1807017f6c2d5089064256ce2de8aef1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b5bfc61f541d3f092b13dedcfe000d86eb8e133c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f715f31559b82e3f75ce047fa476de63d8107584"
}
],
"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-5FFP-85MP-H2Q2
Vulnerability from github – Published: 2024-08-17 12:30 – Updated: 2025-11-04 00:31In the Linux kernel, the following vulnerability has been resolved:
md: fix deadlock between mddev_suspend and flush bio
Deadlock occurs when mddev is being suspended while some flush bio is in progress. It is a complex issue.
T1. the first flush is at the ending stage, it clears 'mddev->flush_bio' and tries to submit data, but is blocked because mddev is suspended by T4. T2. the second flush sets 'mddev->flush_bio', and attempts to queue md_submit_flush_data(), which is already running (T1) and won't execute again if on the same CPU as T1. T3. the third flush inc active_io and tries to flush, but is blocked because 'mddev->flush_bio' is not NULL (set by T2). T4. mddev_suspend() is called and waits for active_io dec to 0 which is inc by T3.
T1 T2 T3 T4 (flush 1) (flush 2) (third 3) (suspend) md_submit_flush_data mddev->flush_bio = NULL; . . md_flush_request . mddev->flush_bio = bio . queue submit_flushes . . . . md_handle_request . . active_io + 1 . . md_flush_request . . wait !mddev->flush_bio . . . . mddev_suspend . . wait !active_io . . . submit_flushes . queue_work md_submit_flush_data . //md_submit_flush_data is already running (T1) . md_handle_request wait resume
The root issue is non-atomic inc/dec of active_io during flush process. active_io is dec before md_submit_flush_data is queued, and inc soon after md_submit_flush_data() run. md_flush_request active_io + 1 submit_flushes active_io - 1 md_submit_flush_data md_handle_request active_io + 1 make_request active_io - 1
If active_io is dec after md_handle_request() instead of within submit_flushes(), make_request() can be called directly intead of md_handle_request() in md_submit_flush_data(), and active_io will only inc and dec once in the whole flush process. Deadlock will be fixed.
Additionally, the only difference between fixing the issue and before is that there is no return error handling of make_request(). But after previous patch cleaned md_write_start(), make_requst() only return error in raid5_make_request() by dm-raid, see commit 41425f96d7aa ("dm-raid456, md/raid456: fix a deadlock for dm-raid456 while io concurrent with reshape)". Since dm always splits data and flush operation into two separate io, io size of flush submitted by dm always is 0, make_request() will not be called in md_submit_flush_data(). To prevent future modifications from introducing issues, add WARN_ON to ensure make_request() no error is returned in this context.
{
"affected": [],
"aliases": [
"CVE-2024-43855"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-17T10:15:10Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd: fix deadlock between mddev_suspend and flush bio\n\nDeadlock occurs when mddev is being suspended while some flush bio is in\nprogress. It is a complex issue.\n\nT1. the first flush is at the ending stage, it clears \u0027mddev-\u003eflush_bio\u0027\n and tries to submit data, but is blocked because mddev is suspended\n by T4.\nT2. the second flush sets \u0027mddev-\u003eflush_bio\u0027, and attempts to queue\n md_submit_flush_data(), which is already running (T1) and won\u0027t\n execute again if on the same CPU as T1.\nT3. the third flush inc active_io and tries to flush, but is blocked because\n \u0027mddev-\u003eflush_bio\u0027 is not NULL (set by T2).\nT4. mddev_suspend() is called and waits for active_io dec to 0 which is inc\n by T3.\n\n T1\t\tT2\t\tT3\t\tT4\n (flush 1)\t(flush 2)\t(third 3)\t(suspend)\n md_submit_flush_data\n mddev-\u003eflush_bio = NULL;\n .\n .\t \tmd_flush_request\n .\t \t mddev-\u003eflush_bio = bio\n .\t \t queue submit_flushes\n .\t\t .\n .\t\t .\t\tmd_handle_request\n .\t\t .\t\t active_io + 1\n .\t\t .\t\t md_flush_request\n .\t\t .\t\t wait !mddev-\u003eflush_bio\n .\t\t .\n .\t\t .\t\t\t\tmddev_suspend\n .\t\t .\t\t\t\t wait !active_io\n .\t\t .\n .\t\t submit_flushes\n .\t\t queue_work md_submit_flush_data\n .\t\t //md_submit_flush_data is already running (T1)\n .\n md_handle_request\n wait resume\n\nThe root issue is non-atomic inc/dec of active_io during flush process.\nactive_io is dec before md_submit_flush_data is queued, and inc soon\nafter md_submit_flush_data() run.\n md_flush_request\n active_io + 1\n submit_flushes\n active_io - 1\n md_submit_flush_data\n md_handle_request\n active_io + 1\n make_request\n active_io - 1\n\nIf active_io is dec after md_handle_request() instead of within\nsubmit_flushes(), make_request() can be called directly intead of\nmd_handle_request() in md_submit_flush_data(), and active_io will\nonly inc and dec once in the whole flush process. Deadlock will be\nfixed.\n\nAdditionally, the only difference between fixing the issue and before is\nthat there is no return error handling of make_request(). But after\nprevious patch cleaned md_write_start(), make_requst() only return error\nin raid5_make_request() by dm-raid, see commit 41425f96d7aa (\"dm-raid456,\nmd/raid456: fix a deadlock for dm-raid456 while io concurrent with\nreshape)\". Since dm always splits data and flush operation into two\nseparate io, io size of flush submitted by dm always is 0, make_request()\nwill not be called in md_submit_flush_data(). To prevent future\nmodifications from introducing issues, add WARN_ON to ensure\nmake_request() no error is returned in this context.",
"id": "GHSA-5ffp-85mp-h2q2",
"modified": "2025-11-04T00:31:16Z",
"published": "2024-08-17T12:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43855"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2d0738a8322bf4e5bfe693d16b3111928a9ccfbf"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/32226070813140234b6c507084738e8e8385c5c6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/611d5cbc0b35a752e657a83eebadf40d814d006b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ca963eefbc3331222b6121baa696d49ba2008811"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.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-5FGJ-3HR2-9FMQ
Vulnerability from github – Published: 2023-05-24 21:30 – Updated: 2023-05-24 21:30A vulnerability, which was classified as problematic, was found in eScan Antivirus 22.0.1400.2443. Affected is the function 0x22E008u in the library PROCOBSRVESX.SYS of the component IoControlCode Handler. The manipulation leads to null pointer dereference. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. VDB-229854 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
{
"affected": [],
"aliases": [
"CVE-2023-2875"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-05-24T19:15:09Z",
"severity": "MODERATE"
},
"details": "A vulnerability, which was classified as problematic, was found in eScan Antivirus 22.0.1400.2443. Affected is the function 0x22E008u in the library PROCOBSRVESX.SYS of the component IoControlCode Handler. The manipulation leads to null pointer dereference. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. VDB-229854 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.",
"id": "GHSA-5fgj-3hr2-9fmq",
"modified": "2023-05-24T21:30:19Z",
"published": "2023-05-24T21:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-2875"
},
{
"type": "WEB",
"url": "https://drive.google.com/file/d/1fvlP0d9HmApjWhYDjgsdco7g7FPsbn0V/view?usp=sharing"
},
{
"type": "WEB",
"url": "https://github.com/zeze-zeze/WindowsKernelVuln/blob/master/CVE-2023-2875"
},
{
"type": "WEB",
"url": "https://github.com/zeze-zeze/WindowsKernelVuln/tree/master/unassigned48"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.229854"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.229854"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/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.