CVE-2023-53705
Published: October 23, 2025Last modified: October 23, 2025
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.2 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | LOW |
| Integrity impact | NONE |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Not affected (6.1.33-r0) |
| 25 LTS | linux-lts | Not affected (6.6.89-r0) | |
| Stream | linux-lts | Fixed (6.6.58-r0) |
References
- https://git.kernel.org/stable/c/011f47c8b8389154f996f5f69da8efc3a3beefef
- https://git.kernel.org/stable/c/04bf69e3de435d793a203aacc4b774f8f9f2baeb
- https://git.kernel.org/stable/c/59e656d0d4a84ea0ee9a39c6f69160a3effccc94
- https://git.kernel.org/stable/c/878ecb0897f4737a4c9401f3523fd49589025671
- https://git.kernel.org/stable/c/91dd8aab9c9f193210681b86b6b92840ffe74f0c
- https://git.kernel.org/stable/c/9b92e2d0eb696d7586ba832c8854653b59887da0
- https://git.kernel.org/stable/c/ae68c0f7edbc9a294094ce03a0aaf45aa489ce40
- https://git.kernel.org/stable/c/e5f82688ae10f5f386952e65e941bb8868ee54dc