NCSC-2026-0131
Vulnerability from csaf_ncscnl - Published: 2026-05-01 06:13 - Updated: 2026-05-01 06:13Summary
Kwetsbaarheid verholpen in Linux kernel cryptographic subsystem
Notes
The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this page to enhance access to its information and security advisories. The use of this security advisory is subject to the following terms and conditions:
NCSC-NL makes every reasonable effort to ensure that the content of this page is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or continuous keeping up-to-date. The information contained in this security advisory is intended solely for the purpose of providing general information to professional users. No rights can be derived from the information provided therein.
NCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of this security advisory. This includes damage resulting from the inaccuracy of incompleteness of the information contained in the advisory.
This security advisory is subject to Dutch law. All disputes related to or arising from the use of this advisory will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings.
Feiten: De Linux kernel heeft een kwetsbaarheid verholpen in de algif_aead crypto module binnen het cryptographic subsystem.
Interpretaties: De kwetsbaarheid bevindt zich in de algif_aead crypto module van de Linux kernel, waar een fout in de in-place operatie optrad wanneer bron- en bestemmingsmappings verschilden. Hiermee is het mogelijk om voor een gebruiker zonder sudo rechten verhoogde privileges te verkrijgen.
Oplossingen: De kernelontwikkelaars hebben de algif_aead-module teruggezet naar een out-of-place-operatie, waarmee de problematische in-place-verwerking is verwijderd. Daarnaast is de complexiteit verminderd door data direct te kopiëren, in plaats van te vertrouwen op de foutgevoelige in-place-methode. Zie de bijgevoegde referenties voor meer informatie.
Kans: medium
Schade: high
CWE-669: Incorrect Resource Transfer Between Spheres
CWE-1288: Improper Validation of Consistency within Input
The Linux kernel's algif_aead crypto module vulnerability was addressed by reverting to out-of-place operation, eliminating incorrect in-place handling that risked data integrity and encrypted communication reliability.
7.8 (High)
References
| URL | Category | |
|---|---|---|
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"text": "De Linux kernel heeft een kwetsbaarheid verholpen in de algif_aead crypto module binnen het cryptographic subsystem.",
"title": "Feiten"
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{
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"text": "De kwetsbaarheid bevindt zich in de algif_aead crypto module van de Linux kernel, waar een fout in de in-place operatie optrad wanneer bron- en bestemmingsmappings verschilden. Hiermee is het mogelijk om voor een gebruiker zonder sudo rechten verhoogde privileges te verkrijgen.",
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"title": "CVE-2026-31431"
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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