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High 7.8

Vulnerability in Linux kernel

CVE-2024-58100 First seen on SecPulse

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2024-58100 has been found in Linux kernel.
Successful exploitation can lead to full system takeover. CVSS score: 7.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "Linux kernel CVE-2024-58100" on the vendor's site.

CVE-2024-58100 (Linux kernel) — CVSS v3 7.8
Attack vector: local / no user interaction
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

What is the problem

A vulnerability (unclassified) exists in Linux kernel.

Affected scope

Check the vendor advisory for the affected versions of Linux kernel.

Severity

Severity: High (CVSS 7.8/10). Successful exploitation can lead to full system takeover.

How to fix

Update to the patched release per vendor advisory.

Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposureidentify
    Audit SBOM/dependencies for affected components.

    資産台帳・SBOM・依存マニフェストで Linux kernel を使っているサービスとバージョンを洗い出す。

  2. 2
    Post-deployment verificationverify
    Confirm patched version is live in production

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

EcosystemPackageAffectedFixed
Linux Kernel
≥ 5.6.0, < 6.6.90
≥ 6.7.0, < 6.12.25
6.6.90
6.12.25

Fix status by distribution

Fixed packages published by each distribution for this CVE

Original description The description as published by the source.

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

bpf: check changes_pkt_data property for extension programs

When processing calls to global sub-programs, verifier decides whether
to invalidate all packet pointers in current state depending on the
changes_pkt_data property of the global sub-program.

Because of this, an extension program replacing a global sub-program
must be compatible with changes_pkt_data property of the sub-program
being replaced.

This commit:

  • adds changes_pkt_data flag to struct bpf_prog_aux:

    • this flag is set in check_cfg() for main sub-program;
    • in jit_subprogs() for other sub-programs;

  • modifies bpf_check_attach_btf_id() to check changes_pkt_data flag;

  • moves call to check_attach_btf_id() after the call to check_cfg(),
    because it needs changes_pkt_data flag to be set:

    bpf_check:
    ... ...

    • check_attach_btf_id resolve_pseudo_ldimm64
      resolve_pseudo_ldimm64 --> bpf_prog_is_offloaded
      bpf_prog_is_offloaded check_cfg
      check_cfg + check_attach_btf_id
      ... ...

The following fields are set by check_attach_btf_id():

  • env->ops
  • prog->aux->attach_btf_trace
  • prog->aux->attach_func_name
  • prog->aux->attach_func_proto
  • prog->aux->dst_trampoline
  • prog->aux->mod
  • prog->aux->saved_dst_attach_type
  • prog->aux->saved_dst_prog_type
  • prog->expected_attach_type

Neither of these fields are used b…

Source: NIST National Vulnerability Database NVD

References

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