CVE-2025-38608

MEDIUM EPSS 5.6%
Published Aug 19, 202510mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Aug 19, 2025 10mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
5.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-908

Affected Products 9

VendorProductVersionRange
linuxlinux_kernel*≥5.0  –  <5.4.297
linuxlinux_kernel*≥5.5  –  <5.10.241
linuxlinux_kernel*≥5.11  –  <5.15.190
linuxlinux_kernel*≥5.16  –  <6.1.148
linuxlinux_kernel*≥6.2  –  <6.6.102
linuxlinux_kernel*≥6.7  –  <6.12.42
linuxlinux_kernel*≥6.13  –  <6.15.10
linuxlinux_kernel*≥6.16  –  <6.16.1
debiandebian_linux11.0any

References 11

  • git.kernel.org https://git.kernel.org/stable/c/0e853c1464bcf61207f8b5c32d2ac5ee495e859d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/16aca8bb4ad0d8a13c8b6da4007f4e52d53035bb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/178f6a5c8cb3b6be1602de0964cd440243f493c9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1e480387d4b42776f8957fb148af9d75ce93b96d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6ba20ff3cdb96a908b9dc93cf247d0b087672e7c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/73fc5d04009d3969ff8e8574f0fd769f04124e59
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/849d24dc5aed45ebeb3490df429356739256ac40
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/90d6ef67440cec2a0aad71a0108c8f216437345c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ee03766d79de0f61ea29ffb6ab1c7b196ea1b02e
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
    Third Party Advisory
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
    Third Party Advisory

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0e853c1464bcf61207f8b5c32d2ac5ee495e859d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/16aca8bb4ad0d8a13c8b6da4007f4e52d53035bb
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/178f6a5c8cb3b6be1602de0964cd440243f493c9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/1e480387d4b42776f8957fb148af9d75ce93b96d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6ba20ff3cdb96a908b9dc93cf247d0b087672e7c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/73fc5d04009d3969ff8e8574f0fd769f04124e59
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/849d24dc5aed45ebeb3490df429356739256ac40
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/90d6ef67440cec2a0aad71a0108c8f216437345c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ee03766d79de0f61ea29ffb6ab1c7b196ea1b02e
    Patch