CVE-2024-42154: Linux kernel · tcp_metrics: validate source addr length
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 4.4 Medium · fixed in 4.4.0-1136.142 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 23:28 UTC
- Patch
- Available – fixed in 4.4.0-1136.142, 4.15.0-1181.196~14.04.1, 4.4.0-259.293~14.04.1 +98
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 30 Jul 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-7003-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7003-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7006-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7003-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7007-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7009-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7019-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7020-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7007-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7020-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7028-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7007-3 (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.
Description
In the Linux kernel, the following vulnerability has been resolved: tcp_metrics: validate source addr length I don't see anything checking that TCP_METRICS_ATTR_SADDR_IPV4 is at least 4 bytes long, and the policy doesn't have an entry for this attribute at all (neither does it for IPv6 but v6 is manually validated).
References
- ubuntu.com/security/CVE-2024-42154 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2024-42154 (opens in a new tab)
- git.kernel.org/linus/66be40e622e177316ae81717aa30057ba9e61dff (opens in a new tab)
- git.kernel.org/stable/c/19d997b59fa1fd7a02e770ee0881c0652b9c32c9 (opens in a new tab)
- git.kernel.org/stable/c/2a2e79dbe2236a1289412d2044994f7ab419b44c (opens in a new tab)
- git.kernel.org/stable/c/cdffc358717e436bb67122bb82c1a2a26e050f98 (opens in a new tab)
- git.kernel.org/stable/c/ef7c428b425beeb52b894e16f1c4b629d6cebfb6 (opens in a new tab)
- git.kernel.org/stable/c/31f03bb04146c1c6df6c03e9f45401f5f5a985d3 (opens in a new tab)
- git.kernel.org/stable/c/8c2debdd170e395934ac0e039748576dfde14e99 (opens in a new tab)
- git.kernel.org/stable/c/3d550dd5418729a6e77fe7721d27adea7152e321 (opens in a new tab)
- git.kernel.org/stable/c/66be40e622e177316ae81717aa30057ba9e61dff (opens in a new tab)
- ubuntu.com/security/notices/USN-7003-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7003-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7006-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7003-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7007-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7009-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7019-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7020-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7007-2 (opens in a new tab)