CVE-2023-53147
published 2025-09-15CVE-2023-53147: In the Linux kernel, the following vulnerability has been resolved: xfrm: add NULL check in xfrm_update_ae_params Normally, x->replay_esn and x->preplay_esn…
PriorityP420medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.15%
4.3th percentile
In the Linux kernel, the following vulnerability has been resolved:
xfrm: add NULL check in xfrm_update_ae_params
Normally, x->replay_esn and x->preplay_esn should be allocated at
xfrm_alloc_replay_state_esn(...) in xfrm_state_construct(...), hence the
xfrm_update_ae_params(...) is okay to update them. However, the current
implementation of xfrm_new_ae(...) allows a malicious user to directly
dereference a NULL pointer and crash the kernel like below.
BUG: kernel NULL pointer dereference, address: 0000000000000000
PGD 8253067 P4D 8253067 PUD 8e0e067 PMD 0
Oops: 0002 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 PID: 98 Comm: poc.npd Not tainted 6.4.0-rc7-00072-gdad9774deaf1 #8
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.o4
RIP: 0010:memcpy_orig+0xad/0x140
Code: e8 4c 89 5f e0 48 8d 7f e0 73 d2 83 c2 20 48 29 d6 48 29 d7 83 fa 10 72 34 4c 8b 06 4c 8b 4e 08 c
RSP: 0018:ffff888008f57658 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffff888008bd0000 RCX: ffffffff8238e571
RDX: 0000000000000018 RSI: ffff888007f64844 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888008f57818
R13: ffff888007f64aa4 R14: 0000000000000000 R15: 0000000000000000
FS: 00000000014013c0(0000) GS:ffff88806d600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 00000000054d8000 CR4: 00000000000006f0
Call Trace:
? __die+0x1f/0x70
? page_fault_oops+0x1e8/0x500
? __pfx_is_prefetch.constprop.0+0x10/0x10
? __pfx_page_fault_oops+0x10/0x10
? _raw_spin_unlock_irqrestore+0x11/0x40
? fixup_exception+0x36/0x460
? _raw_spin_unlock_irqrestore+0x11/0x40
? exc_page_fault+0x5e/0xc0
? asm_exc_page_fault+0x26/0x30
? xfrm_update_ae_params+0xd1/0x260
? memcpy_orig+0xad/0x140
? __pfx__raw_spin_lock_bh+0x10/0x10
xfrm_update_ae_params+0xe7/0x260
xfrm_new_ae+0x298/0x4e0
? __pfx_xfrm_new_ae+0x10/0x10
? __pfx_xfrm_new_ae+0x10/0x1
Affected
22 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.52-1 (bookworm) | linux 6.1.52-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= d8647b79c3b7e223ac051439d165bc8e7bbb832f < ed1cba039309c80b49719fcff3e3d7cdddb73d96 | ed1cba039309c80b49719fcff3e3d7cdddb73d96 |
| linux | linux | >= d8647b79c3b7e223ac051439d165bc8e7bbb832f < 44f69c96f8a147413c23c68cda4d6fb5e23137cd | 44f69c96f8a147413c23c68cda4d6fb5e23137cd |
| linux | linux | >= d8647b79c3b7e223ac051439d165bc8e7bbb832f < 8046beb890ebc83c5820188c650073e1c6066e67 | 8046beb890ebc83c5820188c650073e1c6066e67 |
| linux | linux | >= d8647b79c3b7e223ac051439d165bc8e7bbb832f < bd30aa9c7febb6e709670cd5154194189ca3b7b5 | bd30aa9c7febb6e709670cd5154194189ca3b7b5 |
| linux | linux | >= d8647b79c3b7e223ac051439d165bc8e7bbb832f < 075448a2eb753f813fe873cfa52853e9fef8eedb | 075448a2eb753f813fe873cfa52853e9fef8eedb |
| linux | linux | >= d8647b79c3b7e223ac051439d165bc8e7bbb832f < 87b655f4936b6fc01f3658aa88a22c923b379ebd | 87b655f4936b6fc01f3658aa88a22c923b379ebd |
| linux | linux | >= d8647b79c3b7e223ac051439d165bc8e7bbb832f < 53df4be4f5221e90dc7aa9ce745a9a21bb7024f4 | 53df4be4f5221e90dc7aa9ce745a9a21bb7024f4 |
| linux | linux | >= d8647b79c3b7e223ac051439d165bc8e7bbb832f < 00374d9b6d9f932802b55181be9831aa948e5b7c | 00374d9b6d9f932802b55181be9831aa948e5b7c |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.10.197-1 | 5.10.197-1 |
| linux | linux_kernel | >= 0 < 6.1.52-1 | 6.1.52-1 |
| linux | linux_kernel | >= 0 < 6.4.13-1 | 6.4.13-1 |
| linux | linux_kernel | >= 0 < 6.4.13-1 | 6.4.13-1 |
| linux | linux_kernel | >= 2.6.39 < 4.14.324 | 4.14.324 |
| linux | linux_kernel | >= 4.15 < 4.19.293 | 4.19.293 |
| linux | linux_kernel | >= 4.20 < 5.4.255 | 5.4.255 |
| linux | linux_kernel | >= 5.11 < 5.15.128 | 5.15.128 |
| linux | linux_kernel | >= 5.16 < 6.1.47 | 6.1.47 |
| linux | linux_kernel | >= 5.5 < 5.10.192 | 5.10.192 |
| linux | linux_kernel | >= 6.2 < 6.4.12 | 6.4.12 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Red Hat
kernel: xfrm: add NULL check in xfrm_update_ae_params
vendor_redhat·2025-09-15·CVSS 5.5
CVE-2023-53147 [MEDIUM] CWE-476 kernel: xfrm: add NULL check in xfrm_update_ae_params
kernel: xfrm: add NULL check in xfrm_update_ae_params
In the Linux kernel, the following vulnerability has been resolved:
xfrm: add NULL check in xfrm_update_ae_params
Normally, x->replay_esn and x->preplay_esn should be allocated at
xfrm_alloc_replay_state_esn(...) in xfrm_state_construct(...), hence the
xfrm_update_ae_params(...) is okay to update them. However, the current
implementation of xfrm_new_ae(...) allows a malicious user to directly
dereference a NULL pointer and crash the kernel like below.
BUG: kernel NULL pointer dereference, address: 0000000000000000
PGD 8253067 P4D 8253067 PUD 8e0e067 PMD 0
Oops: 0002 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 PID: 98 Comm: poc.npd Not tainted 6.4.0-rc7-00072-gdad9774deaf1 #8
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.
Debian
CVE-2023-53147: linux - In the Linux kernel, the following vulnerability has been resolved: xfrm: add N...
vendor_debian·2023·CVSS 5.5
CVE-2023-53147 [MEDIUM] CVE-2023-53147: linux - In the Linux kernel, the following vulnerability has been resolved: xfrm: add N...
In the Linux kernel, the following vulnerability has been resolved: xfrm: add NULL check in xfrm_update_ae_params Normally, x->replay_esn and x->preplay_esn should be allocated at xfrm_alloc_replay_state_esn(...) in xfrm_state_construct(...), hence the xfrm_update_ae_params(...) is okay to update them. However, the current implementation of xfrm_new_ae(...) allows a malicious user to directly dereference a NULL pointer and crash the kernel like below. BUG: kernel NULL pointer dereference, address: 0000000000000000 PGD 8253067 P4D 8253067 PUD 8e0e067 PMD 0 Oops: 0002 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 PID: 98 Comm: poc.npd Not tainted 6.4.0-rc7-00072-gdad9774deaf1 #8 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.o4 RIP: 0010:memcpy_ori
GHSA
GHSA-x33g-396q-pw6p: In the Linux kernel, the following vulnerability has been resolved:
xfrm: add NULL check in xfrm_update_ae_params
Normally, x->replay_esn and x->pre
ghsa_unreviewed·2025-09-15
CVE-2023-53147 [MEDIUM] CWE-476 GHSA-x33g-396q-pw6p: In the Linux kernel, the following vulnerability has been resolved:
xfrm: add NULL check in xfrm_update_ae_params
Normally, x->replay_esn and x->pre
In the Linux kernel, the following vulnerability has been resolved:
xfrm: add NULL check in xfrm_update_ae_params
Normally, x->replay_esn and x->preplay_esn should be allocated at
xfrm_alloc_replay_state_esn(...) in xfrm_state_construct(...), hence the
xfrm_update_ae_params(...) is okay to update them. However, the current
implementation of xfrm_new_ae(...) allows a malicious user to directly
dereference a NULL pointer and crash the kernel like below.
BUG: kernel NULL pointer dereference, address: 0000000000000000
PGD 8253067 P4D 8253067 PUD 8e0e067 PMD 0
Oops: 0002 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 PID: 98 Comm: poc.npd Not tainted 6.4.0-rc7-00072-gdad9774deaf1 #8
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.o4
RIP: 0010:memcpy_
OSV
CVE-2023-53147: In the Linux kernel, the following vulnerability has been resolved: xfrm: add NULL check in xfrm_update_ae_params Normally, x->replay_esn and x->prepl
osv·2025-09-15·CVSS 5.5
CVE-2023-53147 [MEDIUM] CVE-2023-53147: In the Linux kernel, the following vulnerability has been resolved: xfrm: add NULL check in xfrm_update_ae_params Normally, x->replay_esn and x->prepl
In the Linux kernel, the following vulnerability has been resolved: xfrm: add NULL check in xfrm_update_ae_params Normally, x->replay_esn and x->preplay_esn should be allocated at xfrm_alloc_replay_state_esn(...) in xfrm_state_construct(...), hence the xfrm_update_ae_params(...) is okay to update them. However, the current implementation of xfrm_new_ae(...) allows a malicious user to directly dereference a NULL pointer and crash the kernel like below. BUG: kernel NULL pointer dereference, address: 0000000000000000 PGD 8253067 P4D 8253067 PUD 8e0e067 PMD 0 Oops: 0002 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 PID: 98 Comm: poc.npd Not tainted 6.4.0-rc7-00072-gdad9774deaf1 #8 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.o4 RIP: 0010:memcpy_ori
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/00374d9b6d9f932802b55181be9831aa948e5b7chttps://git.kernel.org/stable/c/075448a2eb753f813fe873cfa52853e9fef8eedbhttps://git.kernel.org/stable/c/44f69c96f8a147413c23c68cda4d6fb5e23137cdhttps://git.kernel.org/stable/c/53df4be4f5221e90dc7aa9ce745a9a21bb7024f4https://git.kernel.org/stable/c/8046beb890ebc83c5820188c650073e1c6066e67https://git.kernel.org/stable/c/87b655f4936b6fc01f3658aa88a22c923b379ebdhttps://git.kernel.org/stable/c/bd30aa9c7febb6e709670cd5154194189ca3b7b5https://git.kernel.org/stable/c/ed1cba039309c80b49719fcff3e3d7cdddb73d96
2025-09-15
Published