Skip to content
Sign in Sign up
JA EN FR
SecPulse
High 7.8

Vulnerability in Linux kernel

CVE-2024-49958 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-2024-49958 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-2024-49958" on the vendor's site.

CVE-2024-49958 (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
≥ 3.11.0, < 4.19.323
≥ 4.20.0, < 5.4.285
≥ 5.5.0, < 5.10.227
≥ 5.11.0, < 5.15.168
≥ 5.16.0, < 6.1.113
≥ 6.2.0, < 6.6.55
+2 more
4.19.323
5.4.285
5.10.227
5.15.168
6.1.113
6.6.55

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:

ocfs2: reserve space for inline xattr before attaching reflink tree

One of our customers reported a crash and a corrupted ocfs2 filesystem.
The crash was due to the detection of corruption. Upon troubleshooting,
the fsck -fn output showed the below corruption

[EXTENT_LIST_FREE] Extent list in owner 33080590 claims 230 as the next free chain record,
but fsck believes the largest valid value is 227. Clamp the next record value? n

The stat output from the debugfs.ocfs2 showed the following corruption
where the "Next Free Rec:" had overshot the "Count:" in the root metadata
block.

    Inode: 33080590   Mode: 0640   Generation: 2619713622 (0x9c25a856)
    FS Generation: 904309833 (0x35e6ac49)
    CRC32: 00000000   ECC: 0000
    Type: Regular   Attr: 0x0   Flags: Valid
    Dynamic Features: (0x16) HasXattr InlineXattr Refcounted
    Extended Attributes Block: 0  Extended Attributes Inline Size: 256
    User: 0 (root)   Group: 0 (root)   Size: 281320357888
    Links: 1   Clusters: 141738
    ctime: 0x66911b56 0x316edcb8 -- Fri Jul 12 06:02:30.829349048 2024
    atime: 0x66911d6b 0x7f7a28d -- Fri Jul 12 06:11:23.133669517 2024
    mtime: 0x66911b56 0x12ed75d7 -- Fri Jul 12 06:02:30.317552087 2024
    dtime: 0x0 -- Wed Dec 31 17:00:00 1969
    Refcount Block: 2777346
    Last Extblk: 2886943   Orphan Slot: 0
    Sub Alloc Slot: 0   Sub Alloc Bit: 14…

Source: NIST National Vulnerability Database NVD

References

We use cookies for analytics and ad measurement. This setting applies to all Game co., Ltd. sites. Details