CVE-2024-27016: netfilter: flowtable: validate pppoe header
In the Linux kernel, the following vulnerability has been resolved:
netfilter: flowtable: validate pppoe header
Ensure there is sufficient room to access the protocol field of the PPPoe header. Validate it once before the flowtable lookup, then use a helper function to access protocol field.
Other sources
In the Linux kernel, the following vulnerability has been resolved:
netfilter: flowtable: validate pppoe header
The Linux kernel CVE team has assigned CVE-2024-27016 to this issue.
Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024050149-CVE-2024-27016-5114@gregkh/T
— Red Hat
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.223-1Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1Fixed in 6.12.27-1 - Upgrade
Upgrade
redhat/kernelto a version that resolves this vulnerability.Fixed in 5.15.157 - Upgrade
Upgrade
redhat/kernelto a version that resolves this vulnerability.Fixed in 6.1.88 - Upgrade
Upgrade
redhat/kernelto a version that resolves this vulnerability.Fixed in 6.6.29 - Upgrade
Upgrade
redhat/kernelto a version that resolves this vulnerability.Fixed in 6.8.8 - Upgrade
Upgrade
redhat/kernelto a version that resolves this vulnerability.Fixed in 6.9
Event History
Frequently Asked Questions
What is the severity of CVE-2024-27016?
CVE-2024-27016 is classified as a moderate severity vulnerability affecting the Linux kernel.
How do I fix CVE-2024-27016?
To fix CVE-2024-27016, you should update your Linux kernel to versions 5.15.157, 6.1.88, 6.6.29, 6.8.8, or 6.9 and above.
Which Linux distributions are affected by CVE-2024-27016?
CVE-2024-27016 affects various Linux distributions that utilize vulnerable versions of the Linux kernel.
What is the main issue caused by CVE-2024-27016?
The main issue caused by CVE-2024-27016 involves improper validation of the PPPoE header in the netfilter flowtable.
Is there a workaround for CVE-2024-27016?
There is no known workaround for CVE-2024-27016; updating the kernel is the recommended solution.