CVE-2024-27016: netfilter: flowtable: validate pppoe header
First published: Wed May 01 2024(Updated: )
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.
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/87b3593bed1868b2d9fe096c01bcdf0ea86cbebf
- https://git.kernel.org/stable/c/8bf7c76a2a207ca2b4cfda0a279192adf27678d7
- https://git.kernel.org/stable/c/a2471d271042ea18e8a6babc132a8716bb2f08b9
- https://git.kernel.org/stable/c/cf366ee3bc1b7d1c76a882640ba3b3f8f1039163
- https://git.kernel.org/stable/c/d06977b9a4109f8738bb276125eb6a0b772bc433
- https://launchpad.net/bugs/cve/CVE-2024-27016
- https://access.redhat.com/security/cve/CVE-2024-27016
- https://lore.kernel.org/linux-cve-announce/2024050149-CVE-2024-27016-5114@gregkh/T
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2278265
- https://access.redhat.com/errata/RHSA-2024:4823
- https://access.redhat.com/errata/RHSA-2024:4831
- https://access.redhat.com/errata/RHSA-2024:5928
- https://bugzilla.redhat.com/show_bug.cgi?id=2278264
- https://git.kernel.org/linus/87b3593bed1868b2d9fe096c01bcdf0ea86cbebf
- https://security-tracker.debian.org/tracker/CVE-2024-27016
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-27016
- https://nvd.nist.gov/vuln/detail/CVE-2024-27016
- https://ubuntu.com/security/CVE-2024-27016
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.
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