CVE-2025-38608

Published Aug 19, 2025

Last updated 4 months ago

CVSS medium 5.5

Overview

Description
In the Linux kernel, the following vulnerability has been resolved: bpf, ktls: Fix data corruption when using bpf_msg_pop_data() in ktls When sending plaintext data, we initially calculated the corresponding ciphertext length. However, if we later reduced the plaintext data length via socket policy, we failed to recalculate the ciphertext length. This results in transmitting buffers containing uninitialized data during ciphertext transmission. This causes uninitialized bytes to be appended after a complete "Application Data" packet, leading to errors on the receiving end when parsing TLS record.
Source
416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD status
Analyzed
Products
linux_kernel, debian_linux

Risk scores

CVSS 3.1

Type
Primary
Base score
5.5
Impact score
3.6
Exploitability score
1.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity
MEDIUM

Weaknesses

nvd@nist.gov
CWE-908

Social media

Hype score
Not currently trending

  1. CVE-2025-38608 Linux Kernel Data Corruption Vulnerability in BPF and KTLS Subsystems https://t.co/5f0Uvw4yt6

    @VulmonFeeds

    19 Aug 2025

    135 Impressions

    0 Retweets

    1 Like

    1 Bookmark

    0 Replies

    0 Quotes

Configurations

Related CVEs

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References

Sources include official advisories and independent security research.