CVE-2024-35900

2024-05-1909:15:10

416baaa9-dc9f-4396-8d5f-8c081fb06d67

web.nvd.nist.gov

linux kernel

netfilter

vulnerability

cve-2024-35900

inconsistent state warning

6.6 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

13.2%

JSON

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

netfilter: nf_tables: reject new basechain after table flag update

When dormant flag is toggled, hooks are disabled in the commit phase by
iterating over current chains in table (existing and new).

The following configuration allows for an inconsistent state:

add table x
add chain x y { type filter hook input priority 0; }
add table x { flags dormant; }
add chain x w { type filter hook input priority 1; }

which triggers the following warning when trying to unregister chain w
which is already unregistered.

[ 127.322252] WARNING: CPU: 7 PID: 1211 at net/netfilter/core.c:50 1 __nf_unregister_net_hook+0x21a/0x260
[…]
[ 127.322519] Call Trace:
[ 127.322521] <TASK>
[ 127.322524] ? __warn+0x9f/0x1a0
[ 127.322531] ? __nf_unregister_net_hook+0x21a/0x260
[ 127.322537] ? report_bug+0x1b1/0x1e0
[ 127.322545] ? handle_bug+0x3c/0x70
[ 127.322552] ? exc_invalid_op+0x17/0x40
[ 127.322556] ? asm_exc_invalid_op+0x1a/0x20
[ 127.322563] ? kasan_save_free_info+0x3b/0x60
[ 127.322570] ? __nf_unregister_net_hook+0x6a/0x260
[ 127.322577] ? __nf_unregister_net_hook+0x21a/0x260
[ 127.322583] ? __nf_unregister_net_hook+0x6a/0x260
[ 127.322590] ? __nf_tables_unregister_hook+0x8a/0xe0 [nf_tables]
[ 127.322655] nft_table_disable+0x75/0xf0 [nf_tables]
[ 127.322717] nf_tables_commit+0x2571/0x2620 [nf_tables]

Affected configurations

Vulners

Node

linuxlinux_kernelRange5.13–5.4.274

linuxlinux_kernelRange5.5.0–5.10.215

linuxlinux_kernelRange5.11.0–5.15.154

linuxlinux_kernelRange5.16.0–6.1.85

linuxlinux_kernelRange6.2.0–6.6.26

linuxlinux_kernelRange6.7.0–6.8.5

linuxlinux_kernelRange6.9.0≥

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/netfilter/nf_tables_api.c"
    ],
    "versions": [
      {
        "version": "bf8083bbf8fa",
        "lessThan": "6d12f21f8bbe",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "e10f661adc55",
        "lessThan": "41bad13c0e8a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d9c4da8cb74e",
        "lessThan": "7b6fba691871",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "179d9ba5559a",
        "lessThan": "8ba81dca416a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "179d9ba5559a",
        "lessThan": "745cf6a84389",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "179d9ba5559a",
        "lessThan": "420132bee3d0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "179d9ba5559a",
        "lessThan": "e95bb4cba94c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "179d9ba5559a",
        "lessThan": "994209ddf4f4",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/netfilter/nf_tables_api.c"
    ],
    "versions": [
      {
        "version": "5.13",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.13",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.274",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.215",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.154",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.85",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.26",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.8.5",
        "lessThanOrEqual": "6.8.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]