CVE-2021-47160
- Source
- https://cve.org/CVERecord?id=CVE-2021-47160
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-47160.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-47160
- Downstream
- Related
- Published
- 2024-03-25T10:15:08.377Z
- Modified
- 2026-03-13T05:20:34.909485Z
- Severity
-
- 7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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 otherAs portbridge{add,del} have set up PCRMATRIX properly, remove the PCRMATRIX write from mt7530portsetvlanaware.
- References
-
- https://git.kernel.org/stable/c/474a2ddaa192777522a7499784f1d60691cd831a
- https://git.kernel.org/stable/c/4fe4e1f48ba119bdbc7c897c83b04ba0d08f5488
- https://git.kernel.org/stable/c/82ae35b6c14feae5f216913d5b433e143c756d4e
- https://git.kernel.org/stable/c/ae389812733b1b1e8e07fcc238e41db166b5c78d
- https://git.kernel.org/stable/c/b91117b66fe875723a4e79ec6263526fffdb44d2
Affected packages
Git /
Database specific
unresolved_ranges
[
{
"events": [
{
"introduced": "4.16"
},
{
"fixed": "4.19.193"
}
]
},
{
"events": [
{
"introduced": "4.20"
},
{
"fixed": "5.4.124"
}
]
},
{
"events": [
{
"introduced": "5.5"
},
{
"fixed": "5.10.42"
}
]
},
{
"events": [
{
"introduced": "5.11"
},
{
"fixed": "5.12.9"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.13-rc1"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.13-rc2"
}
]
},
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "5.13-rc3"
}
]
}
]
source
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-47160.json"