CWE-416
AllowedUse After Free
Abstraction: Variant · Status: Stable
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
9804 vulnerabilities reference this CWE, most recent first.
GHSA-P284-R695-7GXF
Vulnerability from github – Published: 2026-06-23 18:31 – Updated: 2026-06-23 18:31dhcpcd through 10.3.2, fixed in commit 78ea09e, contains a heap use-after-free vulnerability in the control socket handling within src/control.c that allows local unprivileged attackers to trigger memory corruption when privilege separation is disabled. Attackers can connect to the control socket and send a privileged command such as -x, causing control_recvdata() to free the client object while the same READ+HANGUP event subsequently reaches control_hangup() with the stale pointer, resulting in a use-after-free condition exploitable in deployments using --disable-privsep or where privsep initialization has failed with the control socket operating in mode 0666.
{
"affected": [],
"aliases": [
"CVE-2026-56117"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-23T17:17:09Z",
"severity": "MODERATE"
},
"details": "dhcpcd through 10.3.2, fixed in commit 78ea09e, contains a heap use-after-free vulnerability in the control socket handling within src/control.c that allows local unprivileged attackers to trigger memory corruption when privilege separation is disabled. Attackers can connect to the control socket and send a privileged command such as -x, causing control_recvdata() to free the client object while the same READ+HANGUP event subsequently reaches control_hangup() with the stale pointer, resulting in a use-after-free condition exploitable in deployments using --disable-privsep or where privsep initialization has failed with the control socket operating in mode 0666.",
"id": "GHSA-p284-r695-7gxf",
"modified": "2026-06-23T18:31:43Z",
"published": "2026-06-23T18:31:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56117"
},
{
"type": "WEB",
"url": "https://github.com/NetworkConfiguration/dhcpcd/commit/78ea09ed1633a583dbcde6e7bab9df4639ec8a34"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/dhcpcd-heap-use-after-free-via-control-socket-handling"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/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-P28M-34F6-967Q
Vulnerability from github – Published: 2018-10-10 16:10 – Updated: 2024-10-15 16:03It was discovered that pyOpenSSL incorrectly handled memory when handling X509 objects. A remote attacker could use this issue to cause pyOpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. This attack appears to be exploitable via Depends on the calling application and if it retains a reference to the memory. This vulnerability appears to have been fixed in 17.5.0.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "pyopenssl"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "17.5.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2018-1000807"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": true,
"github_reviewed_at": "2020-06-16T21:47:43Z",
"nvd_published_at": "2018-10-08T15:29:00Z",
"severity": "HIGH"
},
"details": "It was discovered that pyOpenSSL incorrectly handled memory when handling X509 objects. A remote attacker could use this issue to cause pyOpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. This attack appears to be exploitable via Depends on the calling application and if it retains a reference to the memory. This vulnerability appears to have been fixed in 17.5.0.",
"id": "GHSA-p28m-34f6-967q",
"modified": "2024-10-15T16:03:16Z",
"published": "2018-10-10T16:10:38Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-1000807"
},
{
"type": "WEB",
"url": "https://github.com/pyca/pyopenssl/pull/723"
},
{
"type": "WEB",
"url": "https://github.com/pyca/pyopenssl/commit/e73818600065821d588af475b024f4eb518c3509"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2019:0085"
},
{
"type": "PACKAGE",
"url": "https://github.com/pyca/pyopenssl"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/pyopenssl/PYSEC-2018-23.yaml"
},
{
"type": "WEB",
"url": "https://usn.ubuntu.com/3813-1"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00014.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "PyOpenSSL Use-After-Free vulnerability"
}
GHSA-P28Q-GHM8-CW23
Vulnerability from github – Published: 2024-12-04 15:31 – Updated: 2024-12-11 15:31In the Linux kernel, the following vulnerability has been resolved:
sctp: fix possible UAF in sctp_v6_available()
A lockdep report [1] with CONFIG_PROVE_RCU_LIST=y hints that sctp_v6_available() is calling dev_get_by_index_rcu() and ipv6_chk_addr() without holding rcu.
[1] ============================= WARNING: suspicious RCU usage 6.12.0-rc5-virtme #1216 Tainted: G W
net/core/dev.c:876 RCU-list traversed in non-reader section!!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1 1 lock held by sctp_hello/31495: #0: ffff9f1ebbdb7418 (sk_lock-AF_INET6){+.+.}-{0:0}, at: sctp_bind (./arch/x86/include/asm/jump_label.h:27 net/sctp/socket.c:315) sctp
stack backtrace: CPU: 7 UID: 0 PID: 31495 Comm: sctp_hello Tainted: G W 6.12.0-rc5-virtme #1216 Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl (lib/dump_stack.c:123) lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822) dev_get_by_index_rcu (net/core/dev.c:876 (discriminator 7)) sctp_v6_available (net/sctp/ipv6.c:701) sctp sctp_do_bind (net/sctp/socket.c:400 (discriminator 1)) sctp sctp_bind (net/sctp/socket.c:320) sctp inet6_bind_sk (net/ipv6/af_inet6.c:465) ? security_socket_bind (security/security.c:4581 (discriminator 1)) __sys_bind (net/socket.c:1848 net/socket.c:1869) ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:729 arch/x86/mm/fault.c:1340) ? do_user_addr_fault (./arch/x86/include/asm/preempt.h:84 (discriminator 13) ./include/linux/rcupdate.h:98 (discriminator 13) ./include/linux/rcupdate.h:882 (discriminator 13) ./include/linux/mm.h:729 (discriminator 13) arch/x86/mm/fault.c:1340 (discriminator 13)) __x64_sys_bind (net/socket.c:1877 (discriminator 1) net/socket.c:1875 (discriminator 1) net/socket.c:1875 (discriminator 1)) do_syscall_64 (arch/x86/entry/common.c:52 (discriminator 1) arch/x86/entry/common.c:83 (discriminator 1)) entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) RIP: 0033:0x7f59b934a1e7 Code: 44 00 00 48 8b 15 39 8c 0c 00 f7 d8 64 89 02 b8 ff ff ff ff eb bd 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 b8 31 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 09 8c 0c 00 f7 d8 64 89 01 48 All code ======== 0: 44 00 00 add %r8b,(%rax) 3: 48 8b 15 39 8c 0c 00 mov 0xc8c39(%rip),%rdx # 0xc8c43 a: f7 d8 neg %eax c: 64 89 02 mov %eax,%fs:(%rdx) f: b8 ff ff ff ff mov $0xffffffff,%eax 14: eb bd jmp 0xffffffffffffffd3 16: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 1d: 00 00 00 20: 0f 1f 00 nopl (%rax) 23: b8 31 00 00 00 mov $0x31,%eax 28: 0f 05 syscall 2a:* 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 30: 73 01 jae 0x33 32: c3 ret 33: 48 8b 0d 09 8c 0c 00 mov 0xc8c09(%rip),%rcx # 0xc8c43 3a: f7 d8 neg %eax 3c: 64 89 01 mov %eax,%fs:(%rcx) 3f: 48 rex.W
Code starting with the faulting instruction
0: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax 6: 73 01 jae 0x9 8: c3 ret 9: 48 8b 0d 09 8c 0c 00 mov 0xc8c09(%rip),%rcx # 0xc8c19 10: f7 d8 neg %eax 12: 64 89 01 mov %eax,%fs:(%rcx) 15: 48 rex.W RSP: 002b:00007ffe2d0ad398 EFLAGS: 00000202 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 00007ffe2d0ad3d0 RCX: 00007f59b934a1e7 RDX: 000000000000001c RSI: 00007ffe2d0ad3d0 RDI: 0000000000000005 RBP: 0000000000000005 R08: 1999999999999999 R09: 0000000000000000 R10: 00007f59b9253298 R11: 000000000000 ---truncated---
{
"affected": [],
"aliases": [
"CVE-2024-53139"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-04T15:15:15Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: fix possible UAF in sctp_v6_available()\n\nA lockdep report [1] with CONFIG_PROVE_RCU_LIST=y hints\nthat sctp_v6_available() is calling dev_get_by_index_rcu()\nand ipv6_chk_addr() without holding rcu.\n\n[1]\n =============================\n WARNING: suspicious RCU usage\n 6.12.0-rc5-virtme #1216 Tainted: G W\n -----------------------------\n net/core/dev.c:876 RCU-list traversed in non-reader section!!\n\nother info that might help us debug this:\n\nrcu_scheduler_active = 2, debug_locks = 1\n 1 lock held by sctp_hello/31495:\n #0: ffff9f1ebbdb7418 (sk_lock-AF_INET6){+.+.}-{0:0}, at: sctp_bind (./arch/x86/include/asm/jump_label.h:27 net/sctp/socket.c:315) sctp\n\nstack backtrace:\n CPU: 7 UID: 0 PID: 31495 Comm: sctp_hello Tainted: G W 6.12.0-rc5-virtme #1216\n Tainted: [W]=WARN\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\n Call Trace:\n \u003cTASK\u003e\n dump_stack_lvl (lib/dump_stack.c:123)\n lockdep_rcu_suspicious (kernel/locking/lockdep.c:6822)\n dev_get_by_index_rcu (net/core/dev.c:876 (discriminator 7))\n sctp_v6_available (net/sctp/ipv6.c:701) sctp\n sctp_do_bind (net/sctp/socket.c:400 (discriminator 1)) sctp\n sctp_bind (net/sctp/socket.c:320) sctp\n inet6_bind_sk (net/ipv6/af_inet6.c:465)\n ? security_socket_bind (security/security.c:4581 (discriminator 1))\n __sys_bind (net/socket.c:1848 net/socket.c:1869)\n ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:729 arch/x86/mm/fault.c:1340)\n ? do_user_addr_fault (./arch/x86/include/asm/preempt.h:84 (discriminator 13) ./include/linux/rcupdate.h:98 (discriminator 13) ./include/linux/rcupdate.h:882 (discriminator 13) ./include/linux/mm.h:729 (discriminator 13) arch/x86/mm/fault.c:1340 (discriminator 13))\n __x64_sys_bind (net/socket.c:1877 (discriminator 1) net/socket.c:1875 (discriminator 1) net/socket.c:1875 (discriminator 1))\n do_syscall_64 (arch/x86/entry/common.c:52 (discriminator 1) arch/x86/entry/common.c:83 (discriminator 1))\n entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)\n RIP: 0033:0x7f59b934a1e7\n Code: 44 00 00 48 8b 15 39 8c 0c 00 f7 d8 64 89 02 b8 ff ff ff ff eb bd 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 b8 31 00 00 00 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 8b 0d 09 8c 0c 00 f7 d8 64 89 01 48\nAll code\n========\n 0:\t44 00 00 \tadd %r8b,(%rax)\n 3:\t48 8b 15 39 8c 0c 00 \tmov 0xc8c39(%rip),%rdx # 0xc8c43\n a:\tf7 d8 \tneg %eax\n c:\t64 89 02 \tmov %eax,%fs:(%rdx)\n f:\tb8 ff ff ff ff \tmov $0xffffffff,%eax\n 14:\teb bd \tjmp 0xffffffffffffffd3\n 16:\t66 2e 0f 1f 84 00 00 \tcs nopw 0x0(%rax,%rax,1)\n 1d:\t00 00 00\n 20:\t0f 1f 00 \tnopl (%rax)\n 23:\tb8 31 00 00 00 \tmov $0x31,%eax\n 28:\t0f 05 \tsyscall\n 2a:*\t48 3d 01 f0 ff ff \tcmp $0xfffffffffffff001,%rax\t\t\u003c-- trapping instruction\n 30:\t73 01 \tjae 0x33\n 32:\tc3 \tret\n 33:\t48 8b 0d 09 8c 0c 00 \tmov 0xc8c09(%rip),%rcx # 0xc8c43\n 3a:\tf7 d8 \tneg %eax\n 3c:\t64 89 01 \tmov %eax,%fs:(%rcx)\n 3f:\t48 \trex.W\n\nCode starting with the faulting instruction\n===========================================\n 0:\t48 3d 01 f0 ff ff \tcmp $0xfffffffffffff001,%rax\n 6:\t73 01 \tjae 0x9\n 8:\tc3 \tret\n 9:\t48 8b 0d 09 8c 0c 00 \tmov 0xc8c09(%rip),%rcx # 0xc8c19\n 10:\tf7 d8 \tneg %eax\n 12:\t64 89 01 \tmov %eax,%fs:(%rcx)\n 15:\t48 \trex.W\n RSP: 002b:00007ffe2d0ad398 EFLAGS: 00000202 ORIG_RAX: 0000000000000031\n RAX: ffffffffffffffda RBX: 00007ffe2d0ad3d0 RCX: 00007f59b934a1e7\n RDX: 000000000000001c RSI: 00007ffe2d0ad3d0 RDI: 0000000000000005\n RBP: 0000000000000005 R08: 1999999999999999 R09: 0000000000000000\n R10: 00007f59b9253298 R11: 000000000000\n---truncated---",
"id": "GHSA-p28q-ghm8-cw23",
"modified": "2024-12-11T15:31:16Z",
"published": "2024-12-04T15:31:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53139"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/05656a66592759242c74063616291b7274d11b2f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ad975697211f4f2c4ce61c3ba524fd14d88ceab8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/eb72e7fcc83987d5d5595b43222f23b295d5de7f"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-P2FC-CQH2-7JC2
Vulnerability from github – Published: 2022-05-24 17:14 – Updated: 2022-05-24 17:14Use after free in WebAudio in Google Chrome prior to 80.0.3987.162 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
{
"affected": [],
"aliases": [
"CVE-2020-6450"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-04-13T18:15:00Z",
"severity": "MODERATE"
},
"details": "Use after free in WebAudio in Google Chrome prior to 80.0.3987.162 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
"id": "GHSA-p2fc-cqh2-7jc2",
"modified": "2022-05-24T17:14:08Z",
"published": "2022-05-24T17:14:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-6450"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2020/03/stable-channel-update-for-desktop_31.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1062247"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JMXT4OKBMCJSNSX7TZDBJNY6ORKFZRFO"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JQTV7EFWQKF6VJBCVH4PUQJLGO7ISLTN"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00024.html"
},
{
"type": "WEB",
"url": "http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00031.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-P2P8-49MR-GP6C
Vulnerability from github – Published: 2023-07-06 18:30 – Updated: 2024-03-25 03:31An issue was discovered in the Linux kernel through 6.4.2. A crafted UDF filesystem image causes a use-after-free write operation in the udf_put_super and udf_close_lvid functions in fs/udf/super.c.
{
"affected": [],
"aliases": [
"CVE-2023-37454"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-07-06T17:15:14Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in the Linux kernel through 6.4.2. A crafted UDF filesystem image causes a use-after-free write operation in the udf_put_super and udf_close_lvid functions in fs/udf/super.c.",
"id": "GHSA-p2p8-49mr-gp6c",
"modified": "2024-03-25T03:31:43Z",
"published": "2023-07-06T18:30:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-37454"
},
{
"type": "WEB",
"url": "https://bugzilla.suse.com/show_bug.cgi?id=CVE-2023-37454"
},
{
"type": "WEB",
"url": "https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=6f861765464f43a71462d52026fbddfc858239a5"
},
{
"type": "WEB",
"url": "https://lore.kernel.org/all/00000000000056e02f05dfb6e11a%40google.com/T"
},
{
"type": "WEB",
"url": "https://lore.kernel.org/all/00000000000056e02f05dfb6e11a@google.com/T"
},
{
"type": "WEB",
"url": "https://syzkaller.appspot.com/bug?extid=26873a72980f8fa8bc55"
},
{
"type": "WEB",
"url": "https://syzkaller.appspot.com/bug?extid=60864ed35b1073540d57"
},
{
"type": "WEB",
"url": "https://syzkaller.appspot.com/bug?extid=61564e5023b7229ec85d"
}
],
"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-P2P9-P33F-WG2C
Vulnerability from github – Published: 2025-06-18 12:30 – Updated: 2025-11-17 15:30In the Linux kernel, the following vulnerability has been resolved:
staging: rtl8712: fix use after free bugs
_Read/Write_MACREG callbacks are NULL so the read/write_macreg_hdl() functions don't do anything except free the "pcmd" pointer. It results in a use after free. Delete them.
{
"affected": [],
"aliases": [
"CVE-2022-49956"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-18T11:15:22Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8712: fix use after free bugs\n\n_Read/Write_MACREG callbacks are NULL so the read/write_macreg_hdl()\nfunctions don\u0027t do anything except free the \"pcmd\" pointer. It\nresults in a use after free. Delete them.",
"id": "GHSA-p2p9-p33f-wg2c",
"modified": "2025-11-17T15:30:33Z",
"published": "2025-06-18T12:30:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49956"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/19e3f69d19801940abc2ac37c169882769ed9770"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/376e15487fec837301d888068a3fcc82efb6171a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/7dce6b0ee7d78667d6c831ced957a08769973063"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/9fd6170c5e2d0ccd027abe26f6f5ffc528e1bb27"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b1727def850904e4b8ba384043775672841663a1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d0aac7146e96bf39e79c65087d21dfa02ef8db38"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/dc02aaf950015850e7589696521c7fca767cea77"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e230a4455ac3e9b112f0367d1b8e255e141afae0"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-P2QW-28X5-Q4GW
Vulnerability from github – Published: 2024-05-21 15:31 – Updated: 2025-02-03 18:30In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_tables: unlink table before deleting it
syzbot reports following UAF: BUG: KASAN: use-after-free in memcmp+0x18f/0x1c0 lib/string.c:955 nla_strcmp+0xf2/0x130 lib/nlattr.c:836 nft_table_lookup.part.0+0x1a2/0x460 net/netfilter/nf_tables_api.c:570 nft_table_lookup net/netfilter/nf_tables_api.c:4064 [inline] nf_tables_getset+0x1b3/0x860 net/netfilter/nf_tables_api.c:4064 nfnetlink_rcv_msg+0x659/0x13f0 net/netfilter/nfnetlink.c:285 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2504
Problem is that all get operations are lockless, so the commit_mutex held by nft_rcv_nl_event() isn't enough to stop a parallel GET request from doing read-accesses to the table object even after synchronize_rcu().
To avoid this, unlink the table first and store the table objects in on-stack scratch space.
{
"affected": [],
"aliases": [
"CVE-2021-47394"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-21T15:15:24Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: unlink table before deleting it\n\nsyzbot reports following UAF:\nBUG: KASAN: use-after-free in memcmp+0x18f/0x1c0 lib/string.c:955\n nla_strcmp+0xf2/0x130 lib/nlattr.c:836\n nft_table_lookup.part.0+0x1a2/0x460 net/netfilter/nf_tables_api.c:570\n nft_table_lookup net/netfilter/nf_tables_api.c:4064 [inline]\n nf_tables_getset+0x1b3/0x860 net/netfilter/nf_tables_api.c:4064\n nfnetlink_rcv_msg+0x659/0x13f0 net/netfilter/nfnetlink.c:285\n netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2504\n\nProblem is that all get operations are lockless, so the commit_mutex\nheld by nft_rcv_nl_event() isn\u0027t enough to stop a parallel GET request\nfrom doing read-accesses to the table object even after synchronize_rcu().\n\nTo avoid this, unlink the table first and store the table objects in\non-stack scratch space.",
"id": "GHSA-p2qw-28x5-q4gw",
"modified": "2025-02-03T18:30:37Z",
"published": "2024-05-21T15:31:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47394"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a499b03bf36b0c2e3b958a381d828678ab0ffc5e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f65c73d3aabb87d4353e0bc4a718b5ae8c43fd04"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-P2RP-5GG3-7VJF
Vulnerability from github – Published: 2022-05-13 01:26 – Updated: 2022-05-13 01:26Use-after-free vulnerability in Google Chrome before 14.0.835.163 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to "ruby / table style handing."
{
"affected": [],
"aliases": [
"CVE-2011-2854"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2011-09-19T12:02:00Z",
"severity": "MODERATE"
},
"details": "Use-after-free vulnerability in Google Chrome before 14.0.835.163 allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to \"ruby / table style handing.\"",
"id": "GHSA-p2rp-5gg3-7vjf",
"modified": "2022-05-13T01:26:52Z",
"published": "2022-05-13T01:26:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2011-2854"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/69881"
},
{
"type": "WEB",
"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14691"
},
{
"type": "WEB",
"url": "http://code.google.com/p/chromium/issues/detail?id=92651"
},
{
"type": "WEB",
"url": "http://code.google.com/p/chromium/issues/detail?id=94800"
},
{
"type": "WEB",
"url": "http://googlechromereleases.blogspot.com/2011/09/stable-channel-update_16.html"
},
{
"type": "WEB",
"url": "http://lists.apple.com/archives/security-announce/2012/Mar/msg00000.html"
},
{
"type": "WEB",
"url": "http://lists.apple.com/archives/security-announce/2012/Mar/msg00001.html"
},
{
"type": "WEB",
"url": "http://lists.apple.com/archives/security-announce/2012/Mar/msg00003.html"
},
{
"type": "WEB",
"url": "http://osvdb.org/75556"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/48274"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/48288"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/48377"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id?1026774"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-P2W5-XCH3-V6PV
Vulnerability from github – Published: 2023-05-18 00:30 – Updated: 2024-04-04 04:13A flaw was found in the WebKitGTK package. An improper input validation issue may lead to a use-after-free vulnerability. This flaw allows attackers with network access to pass specially crafted web content files, causing a denial of service or arbitrary code execution. This CVE exists because of a CVE-2023-28205 security regression for the WebKitGTK package in Red Hat Enterprise Linux 8.8 and Red Hat Enterprise Linux 9.2.
{
"affected": [],
"aliases": [
"CVE-2023-2203"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-05-17T22:15:10Z",
"severity": "HIGH"
},
"details": "A flaw was found in the WebKitGTK package. An improper input validation issue may lead to a use-after-free vulnerability. This flaw allows attackers with network access to pass specially crafted web content files, causing a denial of service or arbitrary code execution. This CVE exists because of a CVE-2023-28205 security regression for the WebKitGTK package in Red Hat Enterprise Linux 8.8 and Red Hat Enterprise Linux 9.2.",
"id": "GHSA-p2w5-xch3-v6pv",
"modified": "2024-04-04T04:13:59Z",
"published": "2023-05-18T00:30:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-2203"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2023:2653"
},
{
"type": "WEB",
"url": "https://access.redhat.com/errata/RHSA-2023:3108"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2023-2203"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2188543"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-P2XQ-87XH-464R
Vulnerability from github – Published: 2025-04-01 18:30 – Updated: 2025-11-03 21:33In the Linux kernel, the following vulnerability has been resolved:
rapidio: fix an API misues when rio_add_net() fails
rio_add_net() calls device_register() and fails when device_register() fails. Thus, put_device() should be used rather than kfree(). Add "mport->net = NULL;" to avoid a use after free issue.
{
"affected": [],
"aliases": [
"CVE-2025-21934"
],
"database_specific": {
"cwe_ids": [
"CWE-416"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-01T16:15:24Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nrapidio: fix an API misues when rio_add_net() fails\n\nrio_add_net() calls device_register() and fails when device_register()\nfails. Thus, put_device() should be used rather than kfree(). Add\n\"mport-\u003enet = NULL;\" to avoid a use after free issue.",
"id": "GHSA-p2xq-87xh-464r",
"modified": "2025-11-03T21:33:24Z",
"published": "2025-04-01T18:30:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21934"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/22e4977141dfc6d109bf29b495bf2187b4250990"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2537f01d57f08c527e40bbb5862aa6ff43344898"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/88ddad53e4cfb6de861c6d4fb7b25427f46baed5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/a5f5e520e8fbc6294020ff8afa36f684d92c6e6a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b2ef51c74b0171fde7eb69b6152d3d2f743ef269"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cdd9f58f7fe41a55fae4305ea51fc234769fd466"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d4ec862ce80f64db923a1d942b5d11cf6fc87d36"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/f0aa4ee1cbbf7789907e5a3f6810de01c146c211"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
Strategy: Language Selection
Choose a language that provides automatic memory management.
Mitigation
Strategy: Attack Surface Reduction
When freeing pointers, be sure to set them to NULL once they are freed. However, the utilization of multiple or complex data structures may lower the usefulness of this strategy.
No CAPEC attack patterns related to this CWE.