CVE-2024-35900 Affecting kernel-tools package, versions <0:4.18.0-553.16.1.el8_10
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Test your applications- Snyk ID SNYK-ROCKY8-KERNELTOOLS-7784751
- published 22 Aug 2024
- disclosed 19 May 2024
Introduced: 19 May 2024
CVE-2024-35900 Open this link in a new tabHow to fix?
Upgrade Rocky-Linux:8 kernel-tools to version 0:4.18.0-553.16.1.el8_10 or higher.
This issue was patched in RLSA-2024:5101.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-tools package and not the kernel-tools package as distributed by Rocky-Linux.
See How to fix? for Rocky-Linux:8 relevant fixed versions and status.
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]
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-35900
- https://git.kernel.org/stable/c/41bad13c0e8a5a2b47a7472cced922555372daab
- https://git.kernel.org/stable/c/420132bee3d0136b7fba253a597b098fe15493a7
- 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/6d12f21f8bbe23fde25b77c2bf5973c136b8bef8
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html