CVE-2026-31430

N/A

Description

In the Linux kernel, the following vulnerability has been resolved: X.509: Fix out-of-bounds access when parsing extensions Leo reports an out-of-bounds access when parsing a certificate with empty Basic Constraints or Key Usage extension because the first byte of the extension is read before checking its length. Fix it. The bug can be triggered by an unprivileged user by submitting a specially crafted certificate to the kernel through the keyrings(7) API. Leo has demonstrated this with a proof-of-concept program responsibly disclosed off-list.

Details CVE

Score CVSS v3.1N/A

Publie4/20/2026

Derniere modification4/20/2026

Sourcenvd

Observations honeypot0

References

https://git.kernel.org/stable/c/206121294b9cf27f0589857f80d64f87e496ffb2(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/30ab358fad0c7daa1d282ec48089901b21b36a20(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/672b526def1f94c1be8eb11b885b803da0d8c2f1(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/7fb4dadc2734f4020d7543d688b8d49c8e569c61(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/d702c3408213bb12bd570bb97204d8340d141c51(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

Correlations IOC

Aucune correlation enregistree

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