CVE-2024-41091: tun: add missing verification for short frame
First published: Mon Jul 22 2024(Updated: )
A denial-of-service (DoS) attack was found in the mlx5 driver in the Linux kernel. A KVM guest VM using virtio-net can crash the host by sending a short packet (i.e. size < ETH_HLEN). The packet may traverse through vhost-net, macvtap and vlan without any validation/drop. When this packet is presented to mlx5 driver on the host side, the kernel panic happens since mlx5_core assumes the frame size is always >= ETH_HLEN. This vulnerability affects both drivers/net/tun.c and drivers/net/tap.c. <a href="https://access.redhat.com/security/cve/CVE-2024-41091">CVE-2024-41091</a> has been assigned to the TUN side of the issue. Reference: <a href="https://www.openwall.com/lists/oss-security/2024/07/24/4">https://www.openwall.com/lists/oss-security/2024/07/24/4</a>
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/linux | 5.10.223-1 5.10.226-1 6.1.115-1 6.1.112-1 6.11.7-1 6.11.9-1 |
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Reference Links
- https://git.kernel.org/stable/c/049584807f1d797fc3078b68035450a9769eb5c3
- https://git.kernel.org/stable/c/32b0aaba5dbc85816898167d9b5d45a22eae82e9
- https://git.kernel.org/stable/c/589382f50b4a5d90d16d8bc9dcbc0e927a3e39b2
- https://git.kernel.org/stable/c/6100e0237204890269e3f934acfc50d35fd6f319
- https://git.kernel.org/stable/c/8418f55302fa1d2eeb73e16e345167e545c598a5
- https://git.kernel.org/stable/c/a9d1c27e2ee3b0ea5d40c105d6e728fc114470bb
- https://git.kernel.org/stable/c/ad6b3f622ccfb4bfedfa53b6ebd91c3d1d04f146
- https://git.kernel.org/stable/c/d5ad89b7d01ed4e66fd04734fc63d6e78536692a
- https://access.redhat.com/security/cve/CVE-2024-41091
- https://www.openwall.com/lists/oss-security/2024/07/24/4
- https://access.redhat.com/errata/RHSA-2024:5256
- https://access.redhat.com/errata/RHSA-2024:5257
- https://access.redhat.com/errata/RHSA-2024:5281
- https://access.redhat.com/errata/RHSA-2024:5582
- https://access.redhat.com/errata/RHSA-2024:5673
- https://access.redhat.com/errata/RHSA-2024:5672
- https://access.redhat.com/errata/RHSA-2024:5858
- https://access.redhat.com/errata/RHSA-2024:5928
- https://access.redhat.com/errata/RHSA-2024:6160
- https://access.redhat.com/errata/RHSA-2024:6156
- https://access.redhat.com/errata/RHSA-2024:6206
- https://access.redhat.com/errata/RHSA-2024:6242
- https://access.redhat.com/errata/RHSA-2024:6313
- https://access.redhat.com/errata/RHSA-2024:6560
- https://access.redhat.com/errata/RHSA-2024:6663
- https://access.redhat.com/errata/RHSA-2024:6992
- https://access.redhat.com/errata/RHSA-2024:7001
- https://access.redhat.com/errata/RHSA-2024:7000
- https://access.redhat.com/errata/RHSA-2024:7429
- https://bugzilla.redhat.com/show_bug.cgi?id=2299336
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-41091
- https://nvd.nist.gov/vuln/detail/CVE-2024-41091
- https://launchpad.net/bugs/cve/CVE-2024-41091
- https://security-tracker.debian.org/tracker/CVE-2024-41091
- https://ubuntu.com/security/CVE-2024-41091
- https://git.kernel.org/linus/049584807f1d797fc3078b68035450a9769eb5c3
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