CVE-2024-35900
What it is
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]
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.2% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Record status
- Modified
Affected
- Linux Kernel < 5.4.274
- Linux Kernel < 5.10.215
- Linux Kernel < 5.15.154
- Linux Kernel < 6.1.85
- Linux Kernel < 6.6.26
- Linux Kernel < 6.8.5
- Linux Kernel 5.13
- Linux Kernel 6.9
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2024-35900.md and follow it. Check whether this project is affected by CVE-2024-35900. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/41bad13c0e8a5a2b47a7472cced922555372daab
- https://git.kernel.org/stable/c/420132bee3d0136b7fba253a597b098fe15493a7
- https://git.kernel.org/stable/c/6d12f21f8bbe23fde25b77c2bf5973c136b8bef8
- https://git.kernel.org/stable/c/745cf6a843896cdac8766c74379300ed73c78830
- https://git.kernel.org/stable/c/7b6fba6918714afee3e17796113ccab636255c7b
- https://git.kernel.org/stable/c/8ba81dca416adf82fc5a2a23abc1a8cc02ad32fb
- https://git.kernel.org/stable/c/994209ddf4f430946f6247616b2e33d179243769
- https://git.kernel.org/stable/c/e95bb4cba94c018be24b11f017d1c55dd6cda31a
- https://git.kernel.org/stable/c/41bad13c0e8a5a2b47a7472cced922555372daab
- https://git.kernel.org/stable/c/420132bee3d0136b7fba253a597b098fe15493a7
References
- https://git.kernel.org/stable/c/41bad13c0e8a5a2b47a7472cced922555372daab
- https://git.kernel.org/stable/c/420132bee3d0136b7fba253a597b098fe15493a7
- https://git.kernel.org/stable/c/6d12f21f8bbe23fde25b77c2bf5973c136b8bef8
- https://git.kernel.org/stable/c/745cf6a843896cdac8766c74379300ed73c78830
- https://git.kernel.org/stable/c/7b6fba6918714afee3e17796113ccab636255c7b
- https://git.kernel.org/stable/c/8ba81dca416adf82fc5a2a23abc1a8cc02ad32fb
- https://git.kernel.org/stable/c/994209ddf4f430946f6247616b2e33d179243769
- https://git.kernel.org/stable/c/e95bb4cba94c018be24b11f017d1c55dd6cda31a
- https://git.kernel.org/stable/c/41bad13c0e8a5a2b47a7472cced922555372daab
- https://git.kernel.org/stable/c/420132bee3d0136b7fba253a597b098fe15493a7
- https://git.kernel.org/stable/c/6d12f21f8bbe23fde25b77c2bf5973c136b8bef8
- https://git.kernel.org/stable/c/745cf6a843896cdac8766c74379300ed73c78830
- https://git.kernel.org/stable/c/7b6fba6918714afee3e17796113ccab636255c7b
- https://git.kernel.org/stable/c/8ba81dca416adf82fc5a2a23abc1a8cc02ad32fb
- https://git.kernel.org/stable/c/994209ddf4f430946f6247616b2e33d179243769
- https://git.kernel.org/stable/c/e95bb4cba94c018be24b11f017d1c55dd6cda31a
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html