CVE-2024-38579: Linux kernel · crypto: bcm – Fix pointer arithmetic
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 5.5 Medium · fixed in 5.4.0-1130.140~18.04.1 : update Linux kernel when convenient.
Data as of 6 Nov 2026, 15:18 UTC
- Patch
- Available – fixed in 5.4.0-1130.140~18.04.1, 5.4.0-1135.142~18.04.1, 5.4.0-1134.143~18.04.1 +73
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 19 Jun 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 6 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Patches and advisories
- ubuntu.com/security/notices/USN-6949-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6951-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6952-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6953-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6955-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6949-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-6952-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-6951-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-6951-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-6951-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-6979-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7007-1 (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-ibmpkg:deb/ubuntu/linux-ibm?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 patch is available and included in multiple fixed Linux kernel versions such as 5.4.0-1077.82~18.04.1 and later. Users and administrators should update affected Linux kernel packages to these fixed versions as provided by their distribution vendor, such as Ubuntu's security updates. No additional mitigation steps are required beyond applying the official kernel updates.
Description
A vulnerability in the Linux kernel's crypto bcm subsystem was fixed by correcting pointer arithmetic in the spu2_dump_omd() function. The issue involved incrementing a pointer by the wrong length value, potentially causing buffer overflows. This flaw was resolved by changing the increment from ciph_key_len to hash_iv_len. The vulnerability affects multiple specific Linux kernel versions, primarily in the 4.x and 5.4.x series, and has been addressed in later patched releases. The vulnerability has a medium severity rating with no known exploits in the wild.
References
- ubuntu.com/security/CVE-2024-38579 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2024-38579 (opens in a new tab)
- git.kernel.org/linus/2b3460cbf454c6b03d7429e9ffc4fe09322eb1a9 (opens in a new tab)
- git.kernel.org/stable/c/c256b616067bfd6d274c679c06986b78d2402434 (opens in a new tab)
- git.kernel.org/stable/c/e719c8991c161977a67197775067ab456b518c7b (opens in a new tab)
- git.kernel.org/stable/c/ebed0d666fa709bae9e8cafa8ec6e7ebd1d318c6 (opens in a new tab)
- git.kernel.org/stable/c/c69a1e4b419c2c466dd8c5602bdebadc353973dd (opens in a new tab)
- git.kernel.org/stable/c/49833a8da6407e7e9b532cc4054fdbcaf78f5fdd (opens in a new tab)
- git.kernel.org/stable/c/d0f14ae223c2421b334c1f1a9e48f1e809aee3a0 (opens in a new tab)
- git.kernel.org/stable/c/c0082ee420639a97e40cae66778b02b341b005e5 (opens in a new tab)
- git.kernel.org/stable/c/3b7a40740f04e2f27114dfd6225c5e721dda9d57 (opens in a new tab)
- git.kernel.org/stable/c/2b3460cbf454c6b03d7429e9ffc4fe09322eb1a9 (opens in a new tab)
- ubuntu.com/security/notices/USN-6949-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6951-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6952-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6953-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6955-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-6949-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-6952-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-6951-2 (opens in a new tab)