CVE-2024-41042

Advisory lineage Upstream: 0 Downstream: 40
Modified
Published: 29 Jul 2024, 14:31
Last modified:11 May 2026, 20:25

Vulnerability Summary

Overall Risk (default)
medium
31/100
CVSS Score
7.8 HIGH
v3.1 (nvd)
EPSS Score
0.01% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

29 Jul 2024, 14:31
Published
Vulnerability first disclosed
11 May 2026, 20:25
Last Modified
Vulnerability information updated

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: prefer nft_chain_validate nft_chain_validate already performs loop detection because a cycle will result in a call stack overflow (ctx->level >= NFT_JUMP_STACK_SIZE). It also follows maps via ->validate callback in nft_lookup, so there appears no reason to iterate the maps again. nf_tables_check_loops() and all its helper functions can be removed. This improves ruleset load time significantly, from 23s down to 12s. This also fixes a crash bug. Old loop detection code can result in unbounded recursion: BUG: TASK stack guard page was hit at .... Oops: stack guard page: 0000 [#1] PREEMPT SMP KASAN CPU: 4 PID: 1539 Comm: nft Not tainted 6.10.0-rc5+ #1 [..] with a suitable ruleset during validation of register stores. I can't see any actual reason to attempt to check for this from nft_validate_register_store(), at this point the transaction is still in progress, so we don't have a full picture of the rule graph. For nf-next it might make sense to either remove it or make this depend on table->validate_state in case we could catch an error earlier (for improved error reporting to userspace).

CVSS Metrics

  • v3.1•HIGH•Score: 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.01%• Percentile: 1%

Techniques & Countermeasures

  • CWE-787•Out-of-bounds Write

    The product writes data past the end, or before the beginning, of the intended buffer.

Affected Systems

  • linux•linux

    ≥ 20a69341f2d00cd042e81c82289fba8a13c05a25, < 1947e4c3346faa8ac7e343652c0fd3b3e394202f | ≥ 20a69341f2d00cd042e81c82289fba8a13c05a25, < cd4348e0a50286282c314ad6d2b0740e7c812c24 | ≥ 20a69341f2d00cd042e81c82289fba8a13c05a25, < 31c35f9f89ef585f1edb53e17ac73a0ca4a9712b | ≥ 20a69341f2d00cd042e81c82289fba8a13c05a25, < 8246b7466c8da49d0d9e85e26cbd69dd6d3e3d1e | ≥ 20a69341f2d00cd042e81c82289fba8a13c05a25, < b6b6e430470e1c3c5513311cb35a15a205595abe | ≥ 20a69341f2d00cd042e81c82289fba8a13c05a25, < 717c91c6ed73e248de6a15bc53adefb81446c9d0 | ≥ 20a69341f2d00cd042e81c82289fba8a13c05a25, < 9df785aeb7dcc8efd1d4110bb27d26005298ebae | ≥ 20a69341f2d00cd042e81c82289fba8a13c05a25, < cff3bd012a9512ac5ed858d38e6ed65f6391008c | 3.13

  • linux•linux_kernel

    ≥ 3.13, < 4.19.320 | ≥ 4.20, < 5.4.282 | ≥ 5.5, < 5.10.224 | ≥ 5.11, < 5.15.165 | ≥ 5.16, < 6.1.105 | ≥ 6.2, < 6.6.46 | ≥ 6.7, < 6.9.10 | 6.10:rc1 | 6.10:rc2 | 6.10:rc3 | 6.10:rc4 | 6.10:rc5 | 6.10:rc6 | 6.10:rc7

References (10)