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Vulnerability DatabaseCVE-2023-53365
CVE-2023-53365:
Linux Kernel vulnerability analysis and mitigation
Overview
A vulnerability in the Linux kernel's IPv6 multicast routing functionality has been identified as CVE-2023-53365. The issue was discovered in the ip6mrcachereport() function where an invalid memory address calculation occurs when setting up a VLAN device on dev pim6reg (NVD).
Technical details
The vulnerability occurs in the skbpush() function when processing DAD ns packets. When skbpush(skb, -skbnetworkoffset(pkt)) is called with skbnetworkoffset(pkt) being 4, it results in an invalid memory address calculation (0xffff88805f86a84c - 0xfffffffc = 0xffff887f5f86a850) which leads to a kernel panic (NVD).
Impact
The vulnerability can cause a kernel panic, leading to system instability and potential denial of service conditions. This affects systems using IPv6 multicast routing with VLAN configurations (NVD).
Mitigation and workarounds
The vulnerability has been addressed in the Linux kernel through patches that fix the skbunderpanic issue in ip6mrcachereport() (NVD).
Additional resources
Source: This report was generated using AI
Related Linux Kernel vulnerabilities:
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