CVE-2025-40019
crypto: essiv - Check ssize for decryption and in-place encryption
Description
In the Linux kernel, the following vulnerability has been resolved: crypto: essiv - Check ssize for decryption and in-place encryption Move the ssize check to the start in essiv_aead_crypt so that it's also checked for decryption and in-place encryption.
INFO
Published Date :
Oct. 24, 2025, 12:15 p.m.
Last Modified :
Oct. 29, 2025, 2:15 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Apply security updates to the Linux kernel.
- Ensure ESSIV AEAD uses correct size checks.
- Verify decryption and encryption operations.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-40019.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-40019 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-40019
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-40019 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-40019 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Oct. 29, 2025
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/29294dd6f1e7acf527255fb136ffde6602c3a129 Added Reference https://git.kernel.org/stable/c/71f03f8f72d9c70ffba76980e78b38c180e61589 -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Oct. 24, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: crypto: essiv - Check ssize for decryption and in-place encryption Move the ssize check to the start in essiv_aead_crypt so that it's also checked for decryption and in-place encryption. Added Reference https://git.kernel.org/stable/c/248ff2797ff52a8cbf86507f9583437443bf7685 Added Reference https://git.kernel.org/stable/c/6bb73db6948c2de23e407fe1b7ef94bf02b7529f Added Reference https://git.kernel.org/stable/c/da7afb01ba05577ba3629f7f4824205550644986 Added Reference https://git.kernel.org/stable/c/dc4c854a5e7453c465fa73b153eba4ef2a240abe Added Reference https://git.kernel.org/stable/c/df58651968f82344a0ed2afdafd20ecfc55ff548 Added Reference https://git.kernel.org/stable/c/f37e7860dc5e94c70b4a3e38a5809181310ea9ac