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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-43336 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: lib/crypto: chacha: Zeroize permuted_state before it leaves scope Since the ChaCha permutation is invertible, the local variable 'permuted_state' is sufficient to compute the original 'state', and thus the key, even after the permutation has been done. While the kernel is quite inconsistent about zeroizing secrets on the stack (and some prominent userspace crypto libraries don't bother at all since it's not guaranteed to work anyway), the kernel does try to do it as a best practice, especially in cases involving the RNG. Thus, explicitly zeroize 'permuted_state' before it goes out of scope.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/066c760acead1fb743bae294dbd89f479ae43b9b kernel.org
https://git.kernel.org/stable/c/1933249263c3a98df79992f61a566476e4163bcc kernel.org
https://git.kernel.org/stable/c/1d761e5a7340c46479fb2399598f331e4fe2c633 kernel.org
https://git.kernel.org/stable/c/91999af43ca2125e3b2c18fcfc02912ada02efc3 kernel.org
https://git.kernel.org/stable/c/b416a4245f04a450c67a13e6d96056c37c5b33fe kernel.org
https://git.kernel.org/stable/c/bd62d9b44464a6c20a34a74068e7a784d0afa04a kernel.org
https://git.kernel.org/stable/c/e5046823f8fa3677341b541a25af2fcb99a5b1e0 kernel.org
https://git.kernel.org/stable/c/e90ee961af515a484f091678ce58a4c3f7b73b02 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-43336
NVD Published Date:
05/08/2026
NVD Last Modified:
05/08/2026
Source:
kernel.org