CVE-2021-47160 Vulnerability Details

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CVE-2021-47160 Metadata Quick Info

CVE Published: 25/03/2024 | CVE Updated: 04/11/2024 | CVE Year: 2021
Source: Linux | Vendor: Linux | Product: Linux
Status : PUBLISHED

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CVE-2021-47160 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.

Metrics

CVSS Version: 3.1 | Base Score: n/a
Vector: n/a

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    Integrity Impact (I)*
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Weakness Enumeration (CWE)

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Source: Linux

Common Attack Pattern Enumeration and Classification (CAPEC)

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Source: NVD (National Vulnerability Database).