PT-2025-43106 · Linux+3 · Linux Kernel+3

Published

2023-05-24

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Updated

2025-12-04

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CVE-2023-53705

CVSS v2.0

6.0

Medium

VectorAV:L/AC:H/Au:S/C:C/I:C/A:C
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description A flaw exists in the Linux kernel’s IPv6 functionality within the ipv6 find tlv() function. The issue involves accessing data out of bounds due to insufficient checks on the length of data to be parsed. Specifically, the optlen variable is retrieved without verifying if more than one byte needs parsing, potentially leading to an out-of-bounds access. This was discovered by InfoTeCS on behalf of Linux Verification Center using SVACE.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Out of bounds Read

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Weakness Enumeration

Related Identifiers

ALSA-2025_16880
BDU:2026-04018
CESA-2024_3138
CVE-2023-53705
RHSA-2023:6583
RHSA-2023_6583
RHSA-2024:3138
RHSA-2024_3138
RHSA-2026:0532
RHSA-2026:0533
RHSA-2026:0537
RHSA-2026:0576
RHSA-2026:0754
RHSA-2026:0755
RHSA-2026:1441
RHSA-2026:1442
RHSA-2026:1443
RHSA-2026:1512
SUSE-SU-2025:4111-1
SUSE-SU-2025:4135-1
SUSE-SU-2025:4139-1
SUSE-SU-2025:4149-1
SUSE-SU-2025:4188-1
SUSE-SU-2025:4189-1
SUSE-SU-2025:4315-1
SUSE-SU-2025:4320-1

Affected Products

Centos
Linux Kernel
Red Hat
Suse