net: dsa: mt7530: fix VLAN traffic leaks (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.33 % · percentile 27 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: net: dsa: mt7530: fix VLAN traffic leaks PCR_MATRIX field was set to all 1's when VLAN filtering is enabled, but was not reset when it is disabled, which may cause traffic leaks: ip link add br0 type bridge vlan_filtering 1 ip link add br1 type bridge vlan_filtering 1 ip link set swp0 master br0 ip link set swp1 master br1 ip link set br0 type bridge vlan_filtering 0 ip link set br1 type bridge vlan_filtering 0 # traffic in br0 and br1 will start leaking to each other As port_bridge_{add,del} have set up PCR_MATRIX properly, remove the PCR_MATRIX write from mt7530_port_set_vlan_aware.
References
- https://git.kernel.org/stable/c/ae389812733b1b1e8e07fcc238e41db166b5c78d
- https://git.kernel.org/stable/c/4fe4e1f48ba119bdbc7c897c83b04ba0d08f5488
- https://git.kernel.org/stable/c/b91117b66fe875723a4e79ec6263526fffdb44d2
- https://git.kernel.org/stable/c/82ae35b6c14feae5f216913d5b433e143c756d4e
- https://git.kernel.org/stable/c/474a2ddaa192777522a7499784f1d60691cd831a
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.1 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N | Linux |
| CVSS 3.1 | HIGH 8.1 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2021-33808
- GCVE · GCVE-0-2021-47160
CERT-FR advisories
- CERTFR-2024-AVI-0363 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.16 < 4.19.193cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.124cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.42cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.12.9cpe:2.3:o:linux:linux_kernel:5.13:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.13:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.13:rc3:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 83163f7dca5684816d01c8ccf4857aa74801e7b7 < ae389812733b1b1e8e07fcc238e41db166b5c78d ; affected 83163f7dca5684816d01c8ccf4857aa74801e7b7 < 4fe4e1f48ba119bdbc7c897c83b04ba0d08f5488 ; affected 83163f7dca5684816d01c8ccf4857aa74801e7b7 < b91117b66fe875723a4e79ec6263526fffdb44d2 ; affected 83163f7dca5684816d01c8ccf4857aa74801e7b7 < 82ae35b6c14feae5f216913d5b433e143c756d4e ; affected 83163f7dca5684816d01c8ccf4857aa74801e7b7 < 474a2ddaa192777522a7499784f1d60691cd831a |
| Linux · Linux | affected 4.16 ; unaffected 0 < 4.16 ; unaffected 4.19.193 ≤ 4.19.* ; unaffected 5.4.124 ≤ 5.4.* ; unaffected 5.10.42 ≤ 5.10.* ; unaffected 5.12.9 ≤ 5.12.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |