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.

6298 vulnerabilities reference this CWE, most recent first.

GHSA-F5R3-G3CG-82J6

Vulnerability from github – Published: 2024-08-25 00:30 – Updated: 2025-11-03 21:31
VLAI
Details

An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) an ROA or a Manifest containing a null eContent field. Fort dereferences the pointer without sanitizing it first. Because Fort is an RPKI Relying Party, a crash can lead to Route Origin Validation unavailability, which can lead to compromised routing.

Severity
7.5 (High)
CVSS:3.1/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-2024-45239"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-24T23:15:04Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in Fort before 1.6.3. A malicious RPKI repository that descends from a (trusted) Trust Anchor can serve (via rsync or RRDP) an ROA or a Manifest containing a null eContent field. Fort dereferences the pointer without sanitizing it first. Because Fort is an RPKI Relying Party, a crash can lead to Route Origin Validation unavailability, which can lead to compromised routing.",
  "id": "GHSA-f5r3-g3cg-82j6",
  "modified": "2025-11-03T21:31:11Z",
  "published": "2024-08-25T00:30:32Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-45239"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/02/msg00030.html"
    },
    {
      "type": "WEB",
      "url": "https://nicmx.github.io/FORT-validator/CVE.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-F5RQ-W7XF-CJX9

Vulnerability from github – Published: 2025-09-22 21:30 – Updated: 2025-09-22 21:30
VLAI
Details

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

watch_queue: Fix NULL dereference in error cleanup

In watch_queue_set_size(), the error cleanup code doesn't take account of the fact that __free_page() can't handle a NULL pointer when trying to free up buffer pages that did get allocated.

Fix this by only calling __free_page() on the pages actually allocated.

Without the fix, this can lead to something like the following:

BUG: KASAN: null-ptr-deref in __free_pages+0x1f/0x1b0 mm/page_alloc.c:5473 Read of size 4 at addr 0000000000000034 by task syz-executor168/3599 ... Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 __kasan_report mm/kasan/report.c:446 [inline] kasan_report.cold+0x66/0xdf mm/kasan/report.c:459 check_region_inline mm/kasan/generic.c:183 [inline] kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189 instrument_atomic_read include/linux/instrumented.h:71 [inline] atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline] page_ref_count include/linux/page_ref.h:67 [inline] put_page_testzero include/linux/mm.h:717 [inline] __free_pages+0x1f/0x1b0 mm/page_alloc.c:5473 watch_queue_set_size+0x499/0x630 kernel/watch_queue.c:275 pipe_ioctl+0xac/0x2b0 fs/pipe.c:632 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae

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-2022-49257"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:02Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwatch_queue: Fix NULL dereference in error cleanup\n\nIn watch_queue_set_size(), the error cleanup code doesn\u0027t take account of\nthe fact that __free_page() can\u0027t handle a NULL pointer when trying to free\nup buffer pages that did get allocated.\n\nFix this by only calling __free_page() on the pages actually allocated.\n\nWithout the fix, this can lead to something like the following:\n\nBUG: KASAN: null-ptr-deref in __free_pages+0x1f/0x1b0 mm/page_alloc.c:5473\nRead of size 4 at addr 0000000000000034 by task syz-executor168/3599\n...\nCall Trace:\n \u003cTASK\u003e\n __dump_stack lib/dump_stack.c:88 [inline]\n dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106\n __kasan_report mm/kasan/report.c:446 [inline]\n kasan_report.cold+0x66/0xdf mm/kasan/report.c:459\n check_region_inline mm/kasan/generic.c:183 [inline]\n kasan_check_range+0x13d/0x180 mm/kasan/generic.c:189\n instrument_atomic_read include/linux/instrumented.h:71 [inline]\n atomic_read include/linux/atomic/atomic-instrumented.h:27 [inline]\n page_ref_count include/linux/page_ref.h:67 [inline]\n put_page_testzero include/linux/mm.h:717 [inline]\n __free_pages+0x1f/0x1b0 mm/page_alloc.c:5473\n watch_queue_set_size+0x499/0x630 kernel/watch_queue.c:275\n pipe_ioctl+0xac/0x2b0 fs/pipe.c:632\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:874 [inline]\n __se_sys_ioctl fs/ioctl.c:860 [inline]\n __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860\n do_syscall_x64 arch/x86/entry/common.c:50 [inline]\n do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80\n entry_SYSCALL_64_after_hwframe+0x44/0xae",
  "id": "GHSA-f5rq-w7xf-cjx9",
  "modified": "2025-09-22T21:30:16Z",
  "published": "2025-09-22T21:30:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49257"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/112a2f9b0a8457794095a0450598f150724ec456"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5ae75b4ed30322b42abaa75ef1b784addfdb7dc9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/695c47cea02b9101e2fc2e7d36d552128592b347"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a635415a064e77bcfbf43da413fd9dfe0bbed9cb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b6f5ad3e45d19f9c4ee3e8a2aff829f28d68591d"
    }
  ],
  "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-F5X3-46HH-69H6

Vulnerability from github – Published: 2025-02-14 00:30 – Updated: 2025-02-14 18:30
VLAI
Details

Mercedes-Benz head-unit NTG6 contains functions to import or export profile settings over USB. In case of parsing file, service try to define header inside the file and convert it to null-terminated string. If character is missed, will return null pointer.

Severity
7.5 (High)
CVSS:3.1/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-2023-34400"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-13T22:15:10Z",
    "severity": "HIGH"
  },
  "details": "Mercedes-Benz head-unit NTG6 contains functions to import or export profile settings over USB. In case of parsing file, service try to define header inside the file and convert it to null-terminated string. If character is missed, will return null pointer.",
  "id": "GHSA-f5x3-46hh-69h6",
  "modified": "2025-02-14T18:30:50Z",
  "published": "2025-02-14T00:30:44Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-34400"
    },
    {
      "type": "WEB",
      "url": "https://securelist.com/mercedes-benz-head-unit-security-research/115218"
    }
  ],
  "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-F5XQ-VJWC-PQQJ

Vulnerability from github – Published: 2022-05-24 17:28 – Updated: 2022-05-24 17:28
VLAI
Details

An issue was discovered in the DBI module before 1.643 for Perl. The hv_fetch() documentation requires checking for NULL and the code does that. But, shortly thereafter, it calls SvOK(profile), causing a NULL pointer dereference.

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

{
  "affected": [],
  "aliases": [
    "CVE-2019-20919"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-252",
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-09-17T18:15:00Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in the DBI module before 1.643 for Perl. The hv_fetch() documentation requires checking for NULL and the code does that. But, shortly thereafter, it calls SvOK(profile), causing a NULL pointer dereference.",
  "id": "GHSA-f5xq-vjwc-pqqj",
  "modified": "2022-05-24T17:28:31Z",
  "published": "2022-05-24T17:28:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-20919"
    },
    {
      "type": "WEB",
      "url": "https://github.com/perl5-dbi/dbi/commit/eca7d7c8f43d96f6277e86d1000e842eb4cc67ff"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/09/msg00026.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JXLKODJ7B57GITDEZZXNSHPK4VBYXYHR"
    },
    {
      "type": "WEB",
      "url": "https://metacpan.org/pod/distribution/DBI/Changes#Changes-in-DBI-1.643-..."
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4534-1"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00012.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00013.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-F628-324P-CGR6

Vulnerability from github – Published: 2024-08-26 12:31 – Updated: 2026-05-12 12:32
VLAI
Details

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

sctp: Fix null-ptr-deref in reuseport_add_sock().

syzbot reported a null-ptr-deref while accessing sk2->sk_reuseport_cb in reuseport_add_sock(). [0]

The repro first creates a listener with SO_REUSEPORT. Then, it creates another listener on the same port and concurrently closes the first listener.

The second listen() calls reuseport_add_sock() with the first listener as sk2, where sk2->sk_reuseport_cb is not expected to be cleared concurrently, but the close() does clear it by reuseport_detach_sock().

The problem is SCTP does not properly synchronise reuseport_alloc(), reuseport_add_sock(), and reuseport_detach_sock().

The caller of reuseport_alloc() and reuseport_{add,detach}_sock() must provide synchronisation for sockets that are classified into the same reuseport group.

Otherwise, such sockets form multiple identical reuseport groups, and all groups except one would be silently dead.

  1. Two sockets call listen() concurrently
  2. No socket in the same group found in sctp_ep_hashtable[]
  3. Two sockets call reuseport_alloc() and form two reuseport groups
  4. Only one group hit first in __sctp_rcv_lookup_endpoint() receives incoming packets

Also, the reported null-ptr-deref could occur.

TCP/UDP guarantees that would not happen by holding the hash bucket lock.

Let's apply the locking strategy to __sctp_hash_endpoint() and __sctp_unhash_endpoint().

[0]: Oops: general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017] CPU: 1 UID: 0 PID: 10230 Comm: syz-executor119 Not tainted 6.10.0-syzkaller-12585-g301927d2d2eb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:reuseport_add_sock+0x27e/0x5e0 net/core/sock_reuseport.c:350 Code: 00 0f b7 5d 00 bf 01 00 00 00 89 de e8 1b a4 ff f7 83 fb 01 0f 85 a3 01 00 00 e8 6d a0 ff f7 49 8d 7e 12 48 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 4b 02 00 00 41 0f b7 5e 12 49 8d 7e 14 RSP: 0018:ffffc9000b947c98 EFLAGS: 00010202 RAX: 0000000000000002 RBX: ffff8880252ddf98 RCX: ffff888079478000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000012 RBP: 0000000000000001 R08: ffffffff8993e18d R09: 1ffffffff1fef385 R10: dffffc0000000000 R11: fffffbfff1fef386 R12: ffff8880252ddac0 R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f24e45b96c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcced5f7b8 CR3: 00000000241be000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __sctp_hash_endpoint net/sctp/input.c:762 [inline] sctp_hash_endpoint+0x52a/0x600 net/sctp/input.c:790 sctp_listen_start net/sctp/socket.c:8570 [inline] sctp_inet_listen+0x767/0xa20 net/sctp/socket.c:8625 __sys_listen_socket net/socket.c:1883 [inline] __sys_listen+0x1b7/0x230 net/socket.c:1894 __do_sys_listen net/socket.c:1902 [inline] __se_sys_listen net/socket.c:1900 [inline] __x64_sys_listen+0x5a/0x70 net/socket.c:1900 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f24e46039b9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 91 1a 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f24e45b9228 EFLAGS: 00000246 ORIG_RAX: 0000000000000032 RAX: ffffffffffffffda RBX: 00007f24e468e428 RCX: 00007f24e46039b9 RDX: 00007f24e46039b9 RSI: 0000000000000003 RDI: 0000000000000004 RBP: 00007f24e468e420 R08: 00007f24e45b96c0 R09: 00007f24e45b96c0 R10: 00007f24e45b96c0 R11: 0000000000000246 R12: 00007f24e468e42c R13: ---truncated---

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-2024-44935"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-08-26T11:15:05Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: Fix null-ptr-deref in reuseport_add_sock().\n\nsyzbot reported a null-ptr-deref while accessing sk2-\u003esk_reuseport_cb in\nreuseport_add_sock(). [0]\n\nThe repro first creates a listener with SO_REUSEPORT.  Then, it creates\nanother listener on the same port and concurrently closes the first\nlistener.\n\nThe second listen() calls reuseport_add_sock() with the first listener as\nsk2, where sk2-\u003esk_reuseport_cb is not expected to be cleared concurrently,\nbut the close() does clear it by reuseport_detach_sock().\n\nThe problem is SCTP does not properly synchronise reuseport_alloc(),\nreuseport_add_sock(), and reuseport_detach_sock().\n\nThe caller of reuseport_alloc() and reuseport_{add,detach}_sock() must\nprovide synchronisation for sockets that are classified into the same\nreuseport group.\n\nOtherwise, such sockets form multiple identical reuseport groups, and\nall groups except one would be silently dead.\n\n  1. Two sockets call listen() concurrently\n  2. No socket in the same group found in sctp_ep_hashtable[]\n  3. Two sockets call reuseport_alloc() and form two reuseport groups\n  4. Only one group hit first in __sctp_rcv_lookup_endpoint() receives\n      incoming packets\n\nAlso, the reported null-ptr-deref could occur.\n\nTCP/UDP guarantees that would not happen by holding the hash bucket lock.\n\nLet\u0027s apply the locking strategy to __sctp_hash_endpoint() and\n__sctp_unhash_endpoint().\n\n[0]:\nOops: general protection fault, probably for non-canonical address 0xdffffc0000000002: 0000 [#1] PREEMPT SMP KASAN PTI\nKASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]\nCPU: 1 UID: 0 PID: 10230 Comm: syz-executor119 Not tainted 6.10.0-syzkaller-12585-g301927d2d2eb #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024\nRIP: 0010:reuseport_add_sock+0x27e/0x5e0 net/core/sock_reuseport.c:350\nCode: 00 0f b7 5d 00 bf 01 00 00 00 89 de e8 1b a4 ff f7 83 fb 01 0f 85 a3 01 00 00 e8 6d a0 ff f7 49 8d 7e 12 48 89 f8 48 c1 e8 03 \u003c42\u003e 0f b6 04 28 84 c0 0f 85 4b 02 00 00 41 0f b7 5e 12 49 8d 7e 14\nRSP: 0018:ffffc9000b947c98 EFLAGS: 00010202\nRAX: 0000000000000002 RBX: ffff8880252ddf98 RCX: ffff888079478000\nRDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000012\nRBP: 0000000000000001 R08: ffffffff8993e18d R09: 1ffffffff1fef385\nR10: dffffc0000000000 R11: fffffbfff1fef386 R12: ffff8880252ddac0\nR13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000\nFS:  00007f24e45b96c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007ffcced5f7b8 CR3: 00000000241be000 CR4: 00000000003506f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u003cTASK\u003e\n __sctp_hash_endpoint net/sctp/input.c:762 [inline]\n sctp_hash_endpoint+0x52a/0x600 net/sctp/input.c:790\n sctp_listen_start net/sctp/socket.c:8570 [inline]\n sctp_inet_listen+0x767/0xa20 net/sctp/socket.c:8625\n __sys_listen_socket net/socket.c:1883 [inline]\n __sys_listen+0x1b7/0x230 net/socket.c:1894\n __do_sys_listen net/socket.c:1902 [inline]\n __se_sys_listen net/socket.c:1900 [inline]\n __x64_sys_listen+0x5a/0x70 net/socket.c:1900\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f24e46039b9\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 91 1a 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007f24e45b9228 EFLAGS: 00000246 ORIG_RAX: 0000000000000032\nRAX: ffffffffffffffda RBX: 00007f24e468e428 RCX: 00007f24e46039b9\nRDX: 00007f24e46039b9 RSI: 0000000000000003 RDI: 0000000000000004\nRBP: 00007f24e468e420 R08: 00007f24e45b96c0 R09: 00007f24e45b96c0\nR10: 00007f24e45b96c0 R11: 0000000000000246 R12: 00007f24e468e42c\nR13:\n---truncated---",
  "id": "GHSA-f628-324p-cgr6",
  "modified": "2026-05-12T12:32:05Z",
  "published": "2024-08-26T12:31:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-44935"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-355557.html"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/html/ssa-613116.html"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/05e4a0fa248240efd99a539853e844f0f0a9e6a5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1407be30fc17eff918a98e0a990c0e988f11dc84"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/52319d9d2f522ed939af31af70f8c3a0f0f67e6c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/54b303d8f9702b8ab618c5032fae886b16356928"
    },
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9ab0faa7f9ffe31296dbb9bbe6f76c72c14eea18"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c9b3fc4f157867e858734e31022ebee8a24f0de7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e809a84c802377ef61525a298a1ec1728759b913"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html"
    },
    {
      "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-F647-2P86-G4X9

Vulnerability from github – Published: 2022-05-14 02:54 – Updated: 2025-04-12 12:33
VLAI
Details

The do_ssl3_write function in s3_pkt.c in OpenSSL 1.x through 1.0.1g, when SSL_MODE_RELEASE_BUFFERS is enabled, does not properly manage a buffer pointer during certain recursive calls, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via vectors that trigger an alert condition.

Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2014-0198"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2014-05-06T10:44:00Z",
    "severity": "MODERATE"
  },
  "details": "The do_ssl3_write function in s3_pkt.c in OpenSSL 1.x through 1.0.1g, when SSL_MODE_RELEASE_BUFFERS is enabled, does not properly manage a buffer pointer during certain recursive calls, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via vectors that trigger an alert condition.",
  "id": "GHSA-f647-2p86-g4x9",
  "modified": "2025-04-12T12:33:24Z",
  "published": "2022-05-14T02:54:00Z",
  "references": [
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      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1093837"
    },
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      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-234763.pdf"
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      "url": "https://kb.bluecoat.com/index?page=content\u0026id=SA80"
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    {
      "type": "WEB",
      "url": "https://kc.mcafee.com/corporate/index?page=content\u0026id=SB10075"
    },
    {
      "type": "WEB",
      "url": "https://rt.openssl.org/Ticket/Display.html?user=guest\u0026pass=guest\u0026id=3321"
    },
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      "type": "WEB",
      "url": "https://www.novell.com/support/kb/doc.php?id=7015271"
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      "type": "WEB",
      "url": "http://advisories.mageia.org/MGASA-2014-0204.html"
    },
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      "type": "WEB",
      "url": "http://aix.software.ibm.com/aix/efixes/security/openssl_advisory9.asc"
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      "type": "WEB",
      "url": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10629"
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      "url": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=KB29195"
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    {
      "type": "WEB",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136470.html"
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00016.html"
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      "url": "http://lists.opensuse.org/opensuse-updates/2014-05/msg00036.html"
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      "url": "http://lists.opensuse.org/opensuse-updates/2014-05/msg00037.html"
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      "url": "http://marc.info/?l=bugtraq\u0026m=141658880509699\u0026w=2"
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    {
      "type": "WEB",
      "url": "http://puppetlabs.com/security/cve/cve-2014-0198"
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    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2014/Dec/23"
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      "url": "http://secunia.com/advisories/58337"
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      "url": "http://secunia.com/advisories/59284"
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      "type": "WEB",
      "url": "http://secunia.com/advisories/59287"
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      "type": "WEB",
      "url": "http://secunia.com/advisories/59300"
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    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/59374"
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      "type": "WEB",
      "url": "http://secunia.com/advisories/59398"
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    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/59413"
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    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/59437"
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    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/59438"
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      "url": "http://secunia.com/advisories/59440"
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      "url": "http://secunia.com/advisories/59529"
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    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/59655"
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    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/59666"
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    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/59669"
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    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/59721"
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    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/59784"
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    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/59990"
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    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/60049"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/60066"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/60571"
    },
    {
      "type": "WEB",
      "url": "http://secunia.com/advisories/61254"
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    {
      "type": "WEB",
      "url": "http://security.gentoo.org/glsa/glsa-201407-05.xml"
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      "type": "WEB",
      "url": "http://support.citrix.com/article/CTX140876"
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      "url": "http://support.f5.com/kb/en-us/solutions/public/15000/300/sol15329.html"
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      "type": "WEB",
      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20140605-openssl"
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    {
      "type": "WEB",
      "url": "http://www-01.ibm.com/support/docview.wss?uid=nas8N1020163"
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      "type": "WEB",
      "url": "http://www-01.ibm.com/support/docview.wss?uid=swg21673137"
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      "type": "WEB",
      "url": "http://www-01.ibm.com/support/docview.wss?uid=swg21676035"
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      "type": "WEB",
      "url": "http://www-01.ibm.com/support/docview.wss?uid=swg21676062"
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      "type": "WEB",
      "url": "http://www-01.ibm.com/support/docview.wss?uid=swg21676419"
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      "type": "WEB",
      "url": "http://www-01.ibm.com/support/docview.wss?uid=swg21676529"
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      "url": "http://www-01.ibm.com/support/docview.wss?uid=swg21676655"
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    {
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      "url": "http://www-01.ibm.com/support/docview.wss?uid=swg21683332"
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    {
      "type": "WEB",
      "url": "http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095754"
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    {
      "type": "WEB",
      "url": "http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095755"
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      "url": "http://www-947.ibm.com/support/entry/portal/docdisplay?lndocid=MIGR-5095756"
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      "type": "WEB",
      "url": "http://www.blackberry.com/btsc/KB36051"
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      "type": "WEB",
      "url": "http://www.debian.org/security/2014/dsa-2931"
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      "url": "http://www.ibm.com/support/docview.wss?uid=swg21676356"
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      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2014:080"
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      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2015:062"
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      "type": "WEB",
      "url": "http://www.openbsd.org/errata55.html#005_openssl"
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  "severity": []
}

GHSA-F669-J28W-PJVG

Vulnerability from github – Published: 2022-05-24 19:04 – Updated: 2022-05-24 19:04
VLAI
Details

Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Cookie header handled by mod_session can cause a NULL pointer dereference and crash, leading to a possible Denial Of Service

Show details on source website
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{
  "affected": [],
  "aliases": [
    "CVE-2021-26690"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-06-10T07:15:00Z",
    "severity": "HIGH"
  },
  "details": "Apache HTTP Server versions 2.4.0 to 2.4.46 A specially crafted Cookie header handled by mod_session can cause a NULL pointer dereference and crash, leading to a possible Denial Of Service",
  "id": "GHSA-f669-j28w-pjvg",
  "modified": "2022-05-24T19:04:55Z",
  "published": "2022-05-24T19:04:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26690"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/r7f2b70b621651548f4b6f027552f1dd91705d7111bb5d15cda0a68dd@%3Cdev.httpd.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/rae406c1d19c0dfd3103c96923dadac2af1cd0bad6905ab1ede153865@%3Cannounce.httpd.apache.org%3E"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread.html/re026d3da9d7824bd93b9f871c0fdda978d960c7e62d8c43cba8d0bf3%40%3Ccvs.httpd.apache.org%3E"
    },
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      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/07/msg00006.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202107-38"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20210702-0001"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-4937"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
    },
    {
      "type": "WEB",
      "url": "http://httpd.apache.org/security/vulnerabilities_24.html"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2021/06/10/6"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-F675-2H8M-HFRQ

Vulnerability from github – Published: 2022-05-24 17:45 – Updated: 2022-05-24 17:45
VLAI
Details

A NULL pointer dereference flaw was found in the way Jasper versions before 2.0.27 handled component references in the JP2 image format decoder. A specially crafted JP2 image file could cause an application using the Jasper library to crash when opened.

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{
  "affected": [],
  "aliases": [
    "CVE-2021-3443"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-03-25T19:15:00Z",
    "severity": "MODERATE"
  },
  "details": "A NULL pointer dereference flaw was found in the way Jasper versions before 2.0.27 handled component references in the JP2 image format decoder. A specially crafted JP2 image file could cause an application using the Jasper library to crash when opened.",
  "id": "GHSA-f675-2h8m-hfrq",
  "modified": "2022-05-24T17:45:28Z",
  "published": "2022-05-24T17:45:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3443"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1939233"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-F684-4CQG-V8MF

Vulnerability from github – Published: 2022-05-13 01:35 – Updated: 2022-05-13 01:35
VLAI
Details

A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the affected device. The vulnerability exists because the affected software insufficiently validates Cisco Fabric Services packets. An attacker could exploit this vulnerability by sending a crafted Cisco Fabric Services packet to an affected device. A successful exploit could allow the attacker to force a NULL pointer dereference and cause a DoS condition. This vulnerability affects the following if configured to use Cisco Fabric Services: Firepower 4100 Series Next-Generation Firewalls, Firepower 9300 Security Appliance, MDS 9000 Series Multilayer Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules, UCS 6100 Series Fabric Interconnects, UCS 6200 Series Fabric Interconnects, UCS 6300 Series Fabric Interconnects. Cisco Bug IDs: CSCvd69966, CSCve02435, CSCve04859, CSCve41590, CSCve41593, CSCve41601.

Severity
8.6 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2018-0305"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-06-21T11:29:00Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the affected device. The vulnerability exists because the affected software insufficiently validates Cisco Fabric Services packets. An attacker could exploit this vulnerability by sending a crafted Cisco Fabric Services packet to an affected device. A successful exploit could allow the attacker to force a NULL pointer dereference and cause a DoS condition. This vulnerability affects the following if configured to use Cisco Fabric Services: Firepower 4100 Series Next-Generation Firewalls, Firepower 9300 Security Appliance, MDS 9000 Series Multilayer Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules, UCS 6100 Series Fabric Interconnects, UCS 6200 Series Fabric Interconnects, UCS 6300 Series Fabric Interconnects. Cisco Bug IDs: CSCvd69966, CSCve02435, CSCve04859, CSCve41590, CSCve41593, CSCve41601.",
  "id": "GHSA-f684-4cqg-v8mf",
  "modified": "2022-05-13T01:35:26Z",
  "published": "2022-05-13T01:35:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-0305"
    },
    {
      "type": "WEB",
      "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fx-os-fabric-dos"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1041169"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-F6C4-5HQQ-HC4W

Vulnerability from github – Published: 2022-05-14 01:22 – Updated: 2022-05-14 01:22
VLAI
Details

An issue was discovered in ImageMagick 6.9.7. A specially crafted psd file could lead to a NULL pointer dereference (thus, a DoS).

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
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{
  "affected": [],
  "aliases": [
    "CVE-2017-6497"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-03-06T02:59:00Z",
    "severity": "HIGH"
  },
  "details": "An issue was discovered in ImageMagick 6.9.7. A specially crafted psd file could lead to a NULL pointer dereference (thus, a DoS).",
  "id": "GHSA-f6c4-5hqq-hc4w",
  "modified": "2022-05-14T01:22:01Z",
  "published": "2022-05-14T01:22:01Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-6497"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ImageMagick/ImageMagick/commit/7f2dc7a1afc067d0c89f12c82bcdec0445fb1b94"
    },
    {
      "type": "WEB",
      "url": "https://bugs.debian.org/856882"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/96594"
    }
  ],
  "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"
    }
  ]
}
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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