cbcvebase.
CVE-2024-27018
published 2024-05-01

CVE-2024-27018: In the Linux kernel, the following vulnerability has been resolved: netfilter: br_netfilter: skip conntrack input hook for promisc packets For historical…

PriorityP339high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.25%
16.7th percentile
In the Linux kernel, the following vulnerability has been resolved: netfilter: br_netfilter: skip conntrack input hook for promisc packets For historical reasons, when bridge device is in promisc mode, packets that are directed to the taps follow bridge input hook path. This patch adds a workaround to reset conntrack for these packets. Jianbo Liu reports warning splats in their test infrastructure where cloned packets reach the br_netfilter input hook to confirm the conntrack object. Scratch one bit from BR_INPUT_SKB_CB to annotate that this packet has reached the input hook because it is passed up to the bridge device to reach the taps. [ 57.571874] WARNING: CPU: 1 PID: 0 at net/bridge/br_netfilter_hooks.c:616 br_nf_local_in+0x157/0x180 [br_netfilter] [ 57.572749] Modules linked in: xt_MASQUERADE nf_conntrack_netlink nfnetlink iptable_nat xt_addrtype xt_conntrack nf_nat br_netfilter rpcsec_gss_krb5 auth_rpcgss oid_registry overlay rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_isc si ib_umad rdma_cm ib_ipoib iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5ctl mlx5_core [ 57.575158] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0+ #19 [ 57.575700] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 [ 57.576662] RIP: 0010:br_nf_local_in+0x157/0x180 [br_netfilter] [ 57.577195] Code: fe ff ff 41 bd 04 00 00 00 be 04 00 00 00 e9 4a ff ff ff be 04 00 00 00 48 89 ef e8 f3 a9 3c e1 66 83 ad b4 00 00 00 04 eb 91 0b e9 f1 fe ff ff 0f 0b e9 df fe ff ff 48 89 df e8 b3 53 47 e1 [ 57.578722] RSP: 0018:ffff88885f845a08 EFLAGS: 00010202 [ 57.579207] RAX: 0000000000000002 RBX: ffff88812dfe8000 RCX: 0000000000000000 [ 57.579830] RDX: ffff88885f845a60 RSI: ffff8881022dc300 RDI: 0000000000000000 [ 57.580454] RBP: ffff88885f845a60 R08: 0000000000000001 R09: 0000000000000003 [ 57.581076] R10: 00000000ffff1300 R11: 0000000000000002 R12: 0000000000000000 [ 57.581695] R13: ffff8881047ffe00 R14: ffff888108dbee00 R15: ffff88814519

Affected

39 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.90-1 (bookworm)linux 6.1.90-1 (bookworm)
fedoraprojectfedora
fedoraprojectfedora
fedoraprojectfedora
github.comgotenberg_gotenberg_v70 – 7.10.2
github.comgotenberg_gotenberg_v8>= 0 < 8.29.08.29.0
linuxlinux
linuxlinux
linuxlinux>= 2b1414d5e94e477edff1d2c79030f1d742625ea0 < b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6b13db0d16bc7b2a52abcf5cb71334f63faa5dbd6
linuxlinux>= 5.15.151 < 5.15.1575.15.157
linuxlinux>= 6.1.81 < 6.1.886.1.88
linuxlinux>= 6.6.21 < 6.6.296.6.29
linuxlinux>= 6.7.9 < 6.86.8
linuxlinux>= 62e7151ae3eb465e0ab52a20c941ff33bb6332e9 < 43193174510ea4f3ce09b796e559a2fd9f14861543193174510ea4f3ce09b796e559a2fd9f148615
linuxlinux>= 62e7151ae3eb465e0ab52a20c941ff33bb6332e9 < 751de2012eafa4d46d8081056761fa0e9cc8a178751de2012eafa4d46d8081056761fa0e9cc8a178
linuxlinux>= 7c3f28599652acf431a2211168de4a583f30b6d5 < dceb683ab87ca3666a9bb5c0158528b646faedc4dceb683ab87ca3666a9bb5c0158528b646faedc4
linuxlinux>= 80cd0487f630b5382734997c3e5e3003a77db315 < 3f59ac29dea0921637053908fe99268d157bbb9d3f59ac29dea0921637053908fe99268d157bbb9d
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.1.90-16.1.90-1
linuxlinux_kernel>= 0 < 6.8.9-16.8.9-1
linuxlinux_kernel>= 0 < 6.8.9-16.8.9-1
linuxlinux_kernel>= 0 < 5.15.0-116.1265.15.0-116.126
linuxlinux_kernel>= 0 < 6.8.0-38.386.8.0-38.38
linuxlinux_kernel>= 5.15.151 < 5.15.1575.15.157
linuxlinux_kernel>= 6.1.81 < 6.1.886.1.88

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
ghsa8.2HIGH
osv7.8HIGH
vendor_debian7.8HIGH
vendor_msrc7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu6.3MEDIUM
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