CVE-2025-40019— crypto: essiv - Check ssize for decryption and in-place encryption
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I. Basic Information for CVE-2025-40019
Vulnerability Information
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Vulnerability Title
crypto: essiv - Check ssize for decryption and in-place encryption
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于未检查ssize值，可能导致加密和解密操作中的安全问题。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2025-40019
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | maybe a poc for CVE-2025-40019 | https://github.com/guard-wait/CVE-2025-40019_POC | POC Details |
| 2 | A PoC for CVE-2025-40019 in ESSIV module. (exploit WIP) | https://github.com/xooxo/CVE-2025-40019-Essiv | POC Details |
| 3 | A Proof Of Concept for CVE-2025-40019 | https://github.com/0xAtharv/CVE-2025-40019-POC | POC Details |
AI-Generated POCPremium
No public POC found.
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Same Patch Batch · Linux · 2025-10-24 · 8 CVEs total
| CVE-2023-53733 | net: sched: cls_u32: Undo tcf_bind_filter if u32_replace_hw_knode | |
| CVE-2025-40018 | ipvs: Defer ip_vs_ftp unregister during netns cleanup | |
| CVE-2025-40020 | can: peak_usb: fix shift-out-of-bounds issue | |
| CVE-2025-40021 | tracing: dynevent: Add a missing lockdown check on dynevent | |
| CVE-2025-40022 | crypto: af_alg - Fix incorrect boolean values in af_alg_ctx | |
| CVE-2025-40023 | drm/xe/vf: Don't expose sysfs attributes not applicable for VFs | |
| CVE-2025-40024 | vhost: Take a reference on the task in struct vhost_task. |
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
V. Comments for CVE-2025-40019
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