CVE-2024-27015: netfilter: flowtable: incorrect pppoe tuple
First published: Wed May 01 2024(Updated: )
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.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <5.15.157 | 5.15.157 |
| redhat/kernel | <6.1.88 | 6.1.88 |
| redhat/kernel | <6.6.29 | 6.6.29 |
| redhat/kernel | <6.8.8 | 6.8.8 |
| redhat/kernel | <6.9 | 6.9 |
| Linux kernel | >=5.13<5.15.157 | |
| Linux kernel | >=5.16<6.1.88 | |
| Linux kernel | >=6.2<6.6.29 | |
| Linux kernel | >=6.7<6.8.8 | |
| Linux kernel | =6.9-rc1 | |
| Linux kernel | =6.9-rc2 | |
| Linux kernel | =6.9-rc3 | |
| Linux kernel | =6.9-rc4 | |
| Fedora | =38 | |
| Fedora | =39 | |
| Fedora | =40 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.123-1 6.1.128-1 6.12.12-1 6.12.16-1 |
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Reference Links
- https://git.kernel.org/stable/c/4ed82dd368ad883dc4284292937b882f044e625d
- https://git.kernel.org/stable/c/6db5dc7b351b9569940cd1cf445e237c42cd6d27
- https://git.kernel.org/stable/c/e3f078103421642fcd5f05c5e70777feb10f000d
- https://git.kernel.org/stable/c/e719b52d0c56989b0f3475a03a6d64f182c85b56
- https://git.kernel.org/stable/c/f1c3c61701a0b12f4906152c1626a5de580ea3d2
- https://launchpad.net/bugs/cve/CVE-2024-27015
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-27015
- https://nvd.nist.gov/vuln/detail/CVE-2024-27015
- https://security-tracker.debian.org/tracker/CVE-2024-27015
- https://ubuntu.com/security/CVE-2024-27015
- https://git.kernel.org/linus/6db5dc7b351b9569940cd1cf445e237c42cd6d27
- https://access.redhat.com/security/cve/CVE-2024-27015
- https://lore.kernel.org/linux-cve-announce/2024050149-CVE-2024-27015-9ce1@gregkh/T
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2278267
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2278266#c5
- https://access.redhat.com/errata/RHSA-2024:9315
- https://bugzilla.redhat.com/show_bug.cgi?id=2278266
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.
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