CVE-2024-27015: netfilter: flowtable: incorrect pppoe tuple
In the Linux kernel, the following vulnerability has been resolved:
netfilter: flowtable: incorrect pppoe tuple
pppoe traffic reaching ingress path does not match the flowtable entry because the pppoe header is expected to be at the network header offset. This bug causes a mismatch in the flow table lookup, so pppoe packets enter the classical forwarding path.
Other sources
In the Linux kernel, the following vulnerability has been resolved:
netfilter: flowtable: incorrect pppoe tuple
The Linux kernel CVE team has assigned CVE-2024-27015 to this issue.
Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024050149-CVE-2024-27015-9ce1@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 6.12.22-1Fixed in 6.12.25-1 - 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-2024-27015?
CVE-2024-27015 is classified as a medium-severity vulnerability due to its impact on the network flowtable matching.
How do I fix CVE-2024-27015?
To fix CVE-2024-27015, upgrade to kernel version 5.15.157, 6.1.88, 6.6.29, 6.8.8, or 6.9 or the latest patched version available.
What systems are affected by CVE-2024-27015?
CVE-2024-27015 affects various versions of the Linux kernel, specifically those prior to 5.15.157, 6.1.88, 6.6.29, 6.8.8, and 6.9.
What does CVE-2024-27015 affect in the Linux kernel?
CVE-2024-27015 affects the netfilter flowtable functionality by causing mismatches with PPPoE traffic.
Is there a workaround for CVE-2024-27015?
There is no known workaround for CVE-2024-27015; the recommended action is to upgrade the kernel.