CVE-2023-53705
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-22

Last updated on: 2025-10-22

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix out-of-bounds access in ipv6_find_tlv() optlen is fetched without checking whether there is more than one byte to parse. It can lead to out-of-bounds access. Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with SVACE.
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Meta Information
Published
2025-10-22
Last Modified
2025-10-22
Generated
2026-06-16
AI Q&A
2025-10-22
EPSS Evaluated
2026-06-14
NVD
EUVD
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Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability is an out-of-bounds access issue in the Linux kernel's IPv6 implementation, specifically in the function ipv6_find_tlv(). The problem occurs because the code fetches the optlen value without verifying that there is more than one byte available to parse, which can lead to accessing memory outside the intended bounds.

Impact Analysis

The vulnerability can lead to out-of-bounds memory access, which may cause system instability, crashes, or potentially allow an attacker to execute arbitrary code or cause denial of service on affected Linux systems.

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