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VulnerabilityPublished Updated

CVE-2024-47659: Linux kernel · smack: tcp: ipv4, fix incorrect labeling

Affects Linux kernelSource GCVE Database

0

Not known to be exploited · CVSS 9.1 Critical · fixed in 4.4.0-1152.158 : patch Linux kernel as a priority.

Data as of 26 Oct 2026, 23:44 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 4.4.0-1152.158, 4.15.0-1197.212~14.04.1, 4.4.0-278.312~14.04.1 +97
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 Oct 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
Ubuntu 24.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-50.51
Fixed in
  • 6.8.0-50.51
Ubuntu 24.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1020.22
Fixed in
  • 6.8.0-1020.22
Ubuntu 24.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1020.23
Fixed in
  • 6.8.0-1020.23
Ubuntu 24.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1019.21
Fixed in
  • 6.8.0-1019.21
Ubuntu 24.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1015.19
Fixed in
  • 6.8.0-1015.19
Ubuntu 24.04 LTSlinux-gkeoppkg:deb/ubuntu/linux-gkeop?arch=source&distro=nobleOther threatsAffected
  • <6.8.0-1002.4
Fixed in
  • 6.8.0-1002.4

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A fix is available and has been released in multiple Linux kernel versions including 4.4.0-1152.158 and 4.15.0-1197.212~14.04.1. Users and administrators should update their Linux kernel to one of the fixed versions to remediate this vulnerability. No additional mitigation steps are required beyond applying the official patches.

Description

CVE-2024-47659 is a critical vulnerability in the Linux kernel's Smack security module affecting TCP/IPv4 and DCCP connections. The flaw causes incorrect labeling of returned packets, allowing a label 'bar' to write to 'foo' without proper authorization. This issue has existed since Linux kernel version 2.6.29.4 and results in unauthorized write access between Smack labels. The vulnerability has been fixed in multiple Linux kernel versions starting from 4.4.0-1152.158 and 4.15.0-1197.212~14.04.1.

References

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