CVE-2024-47659: Linux kernel · smack: tcp: ipv4, fix incorrect labeling
Affects Linux kernelSource GCVE Database
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
- 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:NExploitation evidence
Disclosed: evidence found.
CVE published 9 Oct 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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.
Patches and advisories
- ubuntu.com/security/notices/USN-7088-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7088-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7088-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7088-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-7100-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7100-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7088-5 (opens in a new tab)
- ubuntu.com/security/notices/USN-7119-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7123-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7144-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7154-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7155-1 (opens in a new tab)
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 24.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-gkeoppkg:deb/ubuntu/linux-gkeop?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
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
- ubuntu.com/security/CVE-2024-47659 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2024-47659 (opens in a new tab)
- git.kernel.org/stable/c/d3f56c653c65f170b172d3c23120bc64ada645d8 (opens in a new tab)
- git.kernel.org/stable/c/5b4b304f196c070342e32a4752e1fa2e22fc0671 (opens in a new tab)
- git.kernel.org/stable/c/a948ec993541db4ef392b555c37a1186f4d61670 (opens in a new tab)
- git.kernel.org/stable/c/0aea09e82eafa50a373fc8a4b84c1d4734751e2c (opens in a new tab)
- git.kernel.org/stable/c/0776bcf9cb6de46fdd94d10118de1cf9b05f83b9 (opens in a new tab)
- git.kernel.org/stable/c/4be9fd15c3c88775bdf6fa37acabe6de85beebff (opens in a new tab)
- git.kernel.org/stable/c/d3703fa94116fed91f64c7d1c7d284fb4369070f (opens in a new tab)
- git.kernel.org/stable/c/2fe209d0ad2e2729f7e22b9b31a86cc3ff0db550 (opens in a new tab)
- ubuntu.com/security/notices/USN-7088-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7088-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7088-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7088-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-7100-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7100-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7088-5 (opens in a new tab)
- ubuntu.com/security/notices/USN-7119-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7123-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7144-1 (opens in a new tab)