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-C398-43HF-W2RG
Vulnerability from github – Published: 2022-05-01 17:43 – Updated: 2025-04-03 15:30WebCore in Apple WebKit build 18794 allows remote attackers to cause a denial of service (null dereference and application crash) via a TD element with a large number in the ROWSPAN attribute, as demonstrated by a crash of OmniWeb 5.5.3 on Mac OS X 10.4.8, a different vulnerability than CVE-2006-2019.
{
"affected": [],
"aliases": [
"CVE-2007-0342"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2007-01-18T02:28:00Z",
"severity": "MODERATE"
},
"details": "WebCore in Apple WebKit build 18794 allows remote attackers to cause a denial of service (null dereference and application crash) via a TD element with a large number in the ROWSPAN attribute, as demonstrated by a crash of OmniWeb 5.5.3 on Mac OS X 10.4.8, a different vulnerability than CVE-2006-2019.",
"id": "GHSA-c398-43hf-w2rg",
"modified": "2025-04-03T15:30:40Z",
"published": "2022-05-01T17:43:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2007-0342"
},
{
"type": "WEB",
"url": "http://security-protocols.com/sp-x41-advisory.php"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/22059"
}
],
"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-C39G-WMC4-J8VM
Vulnerability from github – Published: 2022-04-30 00:02 – Updated: 2022-04-30 00:02It was found that an attacker could issue a xattr request via glusterfs FUSE to cause gluster brick process to crash which will result in a remote denial of service. If gluster multiplexing is enabled this will result in a crash of multiple bricks and gluster volumes.
{
"affected": [],
"aliases": [
"CVE-2018-10914"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-09-04T14:29:00Z",
"severity": "MODERATE"
},
"details": "It was found that an attacker could issue a xattr request via glusterfs FUSE to cause gluster brick process to crash which will result in a remote denial of service. If gluster multiplexing is enabled this will result in a crash of multiple bricks and gluster volumes.",
"id": "GHSA-c39g-wmc4-j8vm",
"modified": "2022-04-30T00:02:17Z",
"published": "2022-04-30T00:02:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-10914"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:2607"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:2608"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2018:3470"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10914"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2018/09/msg00021.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2021/11/msg00000.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201904-06"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00035.html"
}
],
"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-C39J-57H3-VVJP
Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-18 18:32In the Linux kernel, the following vulnerability has been resolved:
usb: xhci_plat_remove: avoid NULL dereference
Since commit 4736ebd7fcaff1eb8481c140ba494962847d6e0a ("usb: host: xhci-plat: omit shared hcd if either root hub has no ports") xhci->shared_hcd can be NULL, which causes the following Oops on reboot:
[ 710.124450] systemd-shutdown[1]: Rebooting. [ 710.298861] xhci-hcd xhci-hcd.2.auto: remove, state 4 [ 710.304217] usb usb3: USB disconnect, device number 1 [ 710.317441] xhci-hcd xhci-hcd.2.auto: USB bus 3 deregistered [ 710.323280] xhci-hcd xhci-hcd.2.auto: remove, state 1 [ 710.328401] usb usb2: USB disconnect, device number 1 [ 710.333515] usb 2-3: USB disconnect, device number 2 [ 710.467649] xhci-hcd xhci-hcd.2.auto: USB bus 2 deregistered [ 710.475450] Unable to handle kernel NULL pointer dereference at virtual address 00000000000003b8 [ 710.484425] Mem abort info: [ 710.487265] ESR = 0x0000000096000004 [ 710.491060] EC = 0x25: DABT (current EL), IL = 32 bits [ 710.496427] SET = 0, FnV = 0 [ 710.499525] EA = 0, S1PTW = 0 [ 710.502716] FSC = 0x04: level 0 translation fault [ 710.507648] Data abort info: [ 710.510577] ISV = 0, ISS = 0x00000004 [ 710.514462] CM = 0, WnR = 0 [ 710.517480] user pgtable: 4k pages, 48-bit VAs, pgdp=00000008b0050000 [ 710.523976] [00000000000003b8] pgd=0000000000000000, p4d=0000000000000000 [ 710.530961] Internal error: Oops: 96000004 [#1] PREEMPT SMP [ 710.536551] Modules linked in: rfkill input_leds snd_soc_simple_card snd_soc_simple_card_utils snd_soc_nau8822 designware_i2s snd_soc_core dw_hdmi_ahb_audio snd_pcm_dmaengine arm_ccn panfrost ac97_bus gpu_sched snd_pcm at24 fuse configfs sdhci_of_dwcmshc sdhci_pltfm sdhci nvme led_class mmc_core nvme_core bt1_pvt polynomial tp_serio snd_seq_midi snd_seq_midi_event snd_seq snd_timer snd_rawmidi snd_seq_device snd soundcore efivarfs ipv6 [ 710.575286] CPU: 7 PID: 1 Comm: systemd-shutdow Not tainted 5.19.0-rc7-00043-gfd8619f4fd54 #1 [ 710.583822] Hardware name: T-Platforms TF307-MB/BM1BM1-A, BIOS 5.6 07/06/2022 [ 710.590972] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 710.597949] pc : usb_remove_hcd+0x34/0x1e4 [ 710.602067] lr : xhci_plat_remove+0x74/0x140 [ 710.606351] sp : ffff800009f3b7c0 [ 710.609674] x29: ffff800009f3b7c0 x28: ffff000800960040 x27: 0000000000000000 [ 710.616833] x26: ffff800008dc22a0 x25: 0000000000000000 x24: 0000000000000000 [ 710.623992] x23: 0000000000000000 x22: ffff000805465810 x21: ffff000805465800 [ 710.631149] x20: ffff000800f80000 x19: 0000000000000000 x18: ffffffffffffffff [ 710.638307] x17: ffff000805096000 x16: ffff00080633b800 x15: ffff000806537a1c [ 710.645465] x14: 0000000000000001 x13: 0000000000000000 x12: ffff00080378d6f0 [ 710.652621] x11: ffff00080041a900 x10: ffff800009b204e8 x9 : ffff8000088abaa4 [ 710.659779] x8 : ffff000800960040 x7 : ffff800009409000 x6 : 0000000000000001 [ 710.666936] x5 : ffff800009241000 x4 : ffff800009241440 x3 : 0000000000000000 [ 710.674094] x2 : ffff000800960040 x1 : ffff000800960040 x0 : 0000000000000000 [ 710.681251] Call trace: [ 710.683704] usb_remove_hcd+0x34/0x1e4 [ 710.687467] xhci_plat_remove+0x74/0x140 [ 710.691400] platform_remove+0x34/0x70 [ 710.695165] device_remove+0x54/0x90 [ 710.698753] device_release_driver_internal+0x200/0x270 [ 710.703992] device_release_driver+0x24/0x30 [ 710.708273] bus_remove_device+0xe0/0x16c [ 710.712293] device_del+0x178/0x390 [ 710.715797] platform_device_del.part.0+0x24/0x90 [ 710.720514] platform_device_unregister+0x30/0x50 [ 710.725232] dwc3_host_exit+0x20/0x30 [ 710.728907] dwc3_remove+0x174/0x1b0 [ 710.732494] platform_remove+0x34/0x70 [ 710.736254] device_remove+0x54/0x90 [ 710.739840] device_release_driver_internal+0x200/0x270 [ 710.745078] device_release_driver+0x24/0x30 [ 710.749359] bus_remove_device+0xe0/0x16c [ 710.753380] device_del+0x178/0x390 [ 710.756881] platform_device_del.part ---truncated---
{
"affected": [],
"aliases": [
"CVE-2022-50133"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-18T11:15:43Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: xhci_plat_remove: avoid NULL dereference\n\nSince commit 4736ebd7fcaff1eb8481c140ba494962847d6e0a (\"usb: host:\nxhci-plat: omit shared hcd if either root hub has no ports\")\nxhci-\u003eshared_hcd can be NULL, which causes the following Oops\non reboot:\n\n[ 710.124450] systemd-shutdown[1]: Rebooting.\n[ 710.298861] xhci-hcd xhci-hcd.2.auto: remove, state 4\n[ 710.304217] usb usb3: USB disconnect, device number 1\n[ 710.317441] xhci-hcd xhci-hcd.2.auto: USB bus 3 deregistered\n[ 710.323280] xhci-hcd xhci-hcd.2.auto: remove, state 1\n[ 710.328401] usb usb2: USB disconnect, device number 1\n[ 710.333515] usb 2-3: USB disconnect, device number 2\n[ 710.467649] xhci-hcd xhci-hcd.2.auto: USB bus 2 deregistered\n[ 710.475450] Unable to handle kernel NULL pointer dereference at virtual address 00000000000003b8\n[ 710.484425] Mem abort info:\n[ 710.487265] ESR = 0x0000000096000004\n[ 710.491060] EC = 0x25: DABT (current EL), IL = 32 bits\n[ 710.496427] SET = 0, FnV = 0\n[ 710.499525] EA = 0, S1PTW = 0\n[ 710.502716] FSC = 0x04: level 0 translation fault\n[ 710.507648] Data abort info:\n[ 710.510577] ISV = 0, ISS = 0x00000004\n[ 710.514462] CM = 0, WnR = 0\n[ 710.517480] user pgtable: 4k pages, 48-bit VAs, pgdp=00000008b0050000\n[ 710.523976] [00000000000003b8] pgd=0000000000000000, p4d=0000000000000000\n[ 710.530961] Internal error: Oops: 96000004 [#1] PREEMPT SMP\n[ 710.536551] Modules linked in: rfkill input_leds snd_soc_simple_card snd_soc_simple_card_utils snd_soc_nau8822 designware_i2s snd_soc_core dw_hdmi_ahb_audio snd_pcm_dmaengine arm_ccn panfrost ac97_bus gpu_sched snd_pcm at24 fuse configfs sdhci_of_dwcmshc sdhci_pltfm sdhci nvme led_class mmc_core nvme_core bt1_pvt polynomial tp_serio snd_seq_midi snd_seq_midi_event snd_seq snd_timer snd_rawmidi snd_seq_device snd soundcore efivarfs ipv6\n[ 710.575286] CPU: 7 PID: 1 Comm: systemd-shutdow Not tainted 5.19.0-rc7-00043-gfd8619f4fd54 #1\n[ 710.583822] Hardware name: T-Platforms TF307-MB/BM1BM1-A, BIOS 5.6 07/06/2022\n[ 710.590972] pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[ 710.597949] pc : usb_remove_hcd+0x34/0x1e4\n[ 710.602067] lr : xhci_plat_remove+0x74/0x140\n[ 710.606351] sp : ffff800009f3b7c0\n[ 710.609674] x29: ffff800009f3b7c0 x28: ffff000800960040 x27: 0000000000000000\n[ 710.616833] x26: ffff800008dc22a0 x25: 0000000000000000 x24: 0000000000000000\n[ 710.623992] x23: 0000000000000000 x22: ffff000805465810 x21: ffff000805465800\n[ 710.631149] x20: ffff000800f80000 x19: 0000000000000000 x18: ffffffffffffffff\n[ 710.638307] x17: ffff000805096000 x16: ffff00080633b800 x15: ffff000806537a1c\n[ 710.645465] x14: 0000000000000001 x13: 0000000000000000 x12: ffff00080378d6f0\n[ 710.652621] x11: ffff00080041a900 x10: ffff800009b204e8 x9 : ffff8000088abaa4\n[ 710.659779] x8 : ffff000800960040 x7 : ffff800009409000 x6 : 0000000000000001\n[ 710.666936] x5 : ffff800009241000 x4 : ffff800009241440 x3 : 0000000000000000\n[ 710.674094] x2 : ffff000800960040 x1 : ffff000800960040 x0 : 0000000000000000\n[ 710.681251] Call trace:\n[ 710.683704] usb_remove_hcd+0x34/0x1e4\n[ 710.687467] xhci_plat_remove+0x74/0x140\n[ 710.691400] platform_remove+0x34/0x70\n[ 710.695165] device_remove+0x54/0x90\n[ 710.698753] device_release_driver_internal+0x200/0x270\n[ 710.703992] device_release_driver+0x24/0x30\n[ 710.708273] bus_remove_device+0xe0/0x16c\n[ 710.712293] device_del+0x178/0x390\n[ 710.715797] platform_device_del.part.0+0x24/0x90\n[ 710.720514] platform_device_unregister+0x30/0x50\n[ 710.725232] dwc3_host_exit+0x20/0x30\n[ 710.728907] dwc3_remove+0x174/0x1b0\n[ 710.732494] platform_remove+0x34/0x70\n[ 710.736254] device_remove+0x54/0x90\n[ 710.739840] device_release_driver_internal+0x200/0x270\n[ 710.745078] device_release_driver+0x24/0x30\n[ 710.749359] bus_remove_device+0xe0/0x16c\n[ 710.753380] device_del+0x178/0x390\n[ 710.756881] platform_device_del.part\n---truncated---",
"id": "GHSA-c39j-57h3-vvjp",
"modified": "2025-11-18T18:32:46Z",
"published": "2025-06-18T12:30:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50133"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/371a8af4f26e06b4d51d893b4436f520b48d07fd"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d7de14d74d6551f0d097430f9893ce82ad17e5b8"
}
],
"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-C3HC-7834-GF3G
Vulnerability from github – Published: 2022-05-17 03:02 – Updated: 2025-04-20 03:32The bm_readbody_bmp function in bitmap_io.c in potrace before 1.13 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted BMP image, a different vulnerability than CVE-2016-8695 and CVE-2016-8696.
{
"affected": [],
"aliases": [
"CVE-2016-8694"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-01-31T22:59:00Z",
"severity": "MODERATE"
},
"details": "The bm_readbody_bmp function in bitmap_io.c in potrace before 1.13 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted BMP image, a different vulnerability than CVE-2016-8695 and CVE-2016-8696.",
"id": "GHSA-c3hc-7834-gf3g",
"modified": "2025-04-20T03:32:04Z",
"published": "2022-05-17T03:02:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-8694"
},
{
"type": "WEB",
"url": "https://blogs.gentoo.org/ago/2016/08/08/potrace-multiple-three-null-pointer-dereference-in-bm_readbody_bmp-bitmap_io-c"
},
{
"type": "WEB",
"url": "http://potrace.sourceforge.net/ChangeLog"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2016/08/18/11"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2016/10/16/12"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/93778"
}
],
"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-C3HW-XWC7-5XGW
Vulnerability from github – Published: 2022-05-14 00:54 – Updated: 2022-05-14 00:54Unchecked NULL pointer usage in ExprResolveLhs in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file that triggers an xkb_intern_atom failure.
{
"affected": [],
"aliases": [
"CVE-2018-15861"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-08-25T21:29:00Z",
"severity": "MODERATE"
},
"details": "Unchecked NULL pointer usage in ExprResolveLhs in xkbcomp/expr.c in xkbcommon before 0.8.2 could be used by local attackers to crash (NULL pointer dereference) the xkbcommon parser by supplying a crafted keymap file that triggers an xkb_intern_atom failure.",
"id": "GHSA-c3hw-xwc7-5xgw",
"modified": "2022-05-14T00:54:57Z",
"published": "2022-05-14T00:54:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-15861"
},
{
"type": "WEB",
"url": "https://github.com/xkbcommon/libxkbcommon/commit/38e1766bc6e20108948aec8a0b222a4bad0254e9"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:2079"
},
{
"type": "WEB",
"url": "https://lists.freedesktop.org/archives/wayland-devel/2018-August/039243.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201810-05"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3786-1"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3786-2"
}
],
"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-C3Q9-4CX6-6R4J
Vulnerability from github – Published: 2022-05-17 02:32 – Updated: 2022-05-17 02:32The vrend_decode_reset function in vrend_decode.c in virglrenderer before 0.6.0 allows local guest OS users to cause a denial of service (NULL pointer dereference and QEMU process crash) by destroying context 0 (zero).
{
"affected": [],
"aliases": [
"CVE-2017-6210"
],
"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 vrend_decode_reset function in vrend_decode.c in virglrenderer before 0.6.0 allows local guest OS users to cause a denial of service (NULL pointer dereference and QEMU process crash) by destroying context 0 (zero).",
"id": "GHSA-c3q9-4cx6-6r4j",
"modified": "2022-05-17T02:32:01Z",
"published": "2022-05-17T02:32:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-6210"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1426170"
},
{
"type": "WEB",
"url": "https://cgit.freedesktop.org/virglrenderer/commit/?id=0a5dff15912207b83018485f83e067474e818bab"
},
{
"type": "WEB",
"url": "https://lists.freedesktop.org/archives/virglrenderer-devel/2017-February/000145.html"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/201707-06"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2017/02/23/21"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/96439"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-C3QR-X655-RX39
Vulnerability from github – Published: 2022-05-13 01:10 – Updated: 2025-04-20 03:33coders/tiff.c in ImageMagick before 7.0.3.7 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted image.
{
"affected": [],
"aliases": [
"CVE-2016-9559"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-03-01T15:59:00Z",
"severity": "MODERATE"
},
"details": "coders/tiff.c in ImageMagick before 7.0.3.7 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted image.",
"id": "GHSA-c3qr-x655-rx39",
"modified": "2025-04-20T03:33:27Z",
"published": "2022-05-13T01:10:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2016-9559"
},
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/issues/298"
},
{
"type": "WEB",
"url": "https://github.com/ImageMagick/ImageMagick/commit/b61d35eaccc0a7ddeff8a1c3abfcd0a43ccf210b"
},
{
"type": "WEB",
"url": "https://blogs.gentoo.org/ago/2016/11/19/imagemagick-null-pointer-must-never-be-null-tiff-c"
},
{
"type": "WEB",
"url": "http://www.debian.org/security/2016/dsa-3726"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2016/11/19/7"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2016/11/23/4"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/94489"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-C3VQ-CRH9-3R34
Vulnerability from github – Published: 2022-04-16 00:00 – Updated: 2022-04-23 00:03An issue was discovered in YottaDB through r1.32 and V7.0-000 and FIS GT.M through V7.0-000. Using crafted input, an attacker can cause a NULL pointer dereference after calls to ZPrint.
{
"affected": [],
"aliases": [
"CVE-2021-44495"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-04-15T18:15:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in YottaDB through r1.32 and V7.0-000 and FIS GT.M through V7.0-000. Using crafted input, an attacker can cause a NULL pointer dereference after calls to ZPrint.",
"id": "GHSA-c3vq-crh9-3r34",
"modified": "2022-04-23T00:03:15Z",
"published": "2022-04-16T00:00:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-44495"
},
{
"type": "WEB",
"url": "https://gitlab.com/YottaDB/DB/YDB/-/issues/828"
},
{
"type": "WEB",
"url": "https://sourceforge.net/projects/fis-gtm/files"
},
{
"type": "WEB",
"url": "http://tinco.pair.com/bhaskar/gtm/doc/articles/GTM_V7.0-002_Release_Notes.html"
}
],
"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-C44Q-MXRG-GRC2
Vulnerability from github – Published: 2025-10-01 12:30 – Updated: 2026-01-16 21:30In the Linux kernel, the following vulnerability has been resolved:
gpiolib: cdev: fix NULL-pointer dereferences
There are several places where we can crash the kernel by requesting lines, unbinding the GPIO device, then calling any of the system calls relevant to the GPIO character device's annonymous file descriptors: ioctl(), read(), poll().
While I observed it with the GPIO simulator, it will also happen for any of the GPIO devices that can be hot-unplugged - for instance any HID GPIO expander (e.g. CP2112).
This affects both v1 and v2 uAPI.
This fixes it partially by checking if gdev->chip is not NULL but it doesn't entirely remedy the situation as we still have a race condition in which another thread can remove the device after the check.
{
"affected": [],
"aliases": [
"CVE-2022-50453"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-01T12:15:38Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpiolib: cdev: fix NULL-pointer dereferences\n\nThere are several places where we can crash the kernel by requesting\nlines, unbinding the GPIO device, then calling any of the system calls\nrelevant to the GPIO character device\u0027s annonymous file descriptors:\nioctl(), read(), poll().\n\nWhile I observed it with the GPIO simulator, it will also happen for any\nof the GPIO devices that can be hot-unplugged - for instance any HID GPIO\nexpander (e.g. CP2112).\n\nThis affects both v1 and v2 uAPI.\n\nThis fixes it partially by checking if gdev-\u003echip is not NULL but it\ndoesn\u0027t entirely remedy the situation as we still have a race condition\nin which another thread can remove the device after the check.",
"id": "GHSA-c44q-mxrg-grc2",
"modified": "2026-01-16T21:30:28Z",
"published": "2025-10-01T12:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50453"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/533aae7c94dbc2b14301cfd68ae7e0e90f0c8438"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6d79546622baab843172b52c3af035f83c1b21df"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7c755a2d6df511eeb5afba966ac28140f9ea5063"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ac6ce3cd7a3e10a2e37b8970bab81b4d33d5cfc3"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d66f68ac9e7ba46b6b90fbe25155723f2126088a"
}
],
"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-C484-H7G8-6C74
Vulnerability from github – Published: 2022-05-14 00:53 – Updated: 2022-05-14 00:53Adobe Acrobat and Reader 2018.011.20040 and earlier, 2017.011.30080 and earlier, and 2015.006.30418 and earlier versions have an Untrusted pointer dereference vulnerability. Successful exploitation could lead to arbitrary code execution in the context of the current user.
{
"affected": [],
"aliases": [
"CVE-2018-5030"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-07-20T19:29:00Z",
"severity": "HIGH"
},
"details": "Adobe Acrobat and Reader 2018.011.20040 and earlier, 2017.011.30080 and earlier, and 2015.006.30418 and earlier versions have an Untrusted pointer dereference vulnerability. Successful exploitation could lead to arbitrary code execution in the context of the current user.",
"id": "GHSA-c484-h7g8-6c74",
"modified": "2022-05-14T00:53:23Z",
"published": "2022-05-14T00:53:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-5030"
},
{
"type": "WEB",
"url": "https://helpx.adobe.com/security/products/acrobat/apsb18-21.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/104701"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1041250"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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.