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CVE-2022-49561

MEDIUM

5.5

Descricao

In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: re-fetch conntrack after insertion In case the conntrack is clashing, insertion can free skb->_nfct and set skb->_nfct to the already-confirmed entry. This wasn't found before because the conntrack entry and the extension space used to free'd after an rcu grace period, plus the race needs events enabled to trigger.

Detalhes CVE

Pontuacao CVSS v3.15.5

SeveridadeMEDIUM

Vetor CVSSCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Vetor de ataqueLOCAL

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado2/26/2025

Ultima modificacao10/24/2025

Fontenvd

Avistamentos honeypot0

Produtos afetados

linux:linux_kernel

Referencias

https://git.kernel.org/stable/c/01989d7eebb61c99bd4b88ebc8e261bd2f02caed(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/04e4a11dc723c52db7a36dc58f0d69ce6426f8f0(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/04f9e9104c969d8ce10a4a43634f641ed082092d(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/56b14ecec97f39118bf85c9ac2438c5a949509ed(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/91a36ec160ec1a0c8f5352b772dffcbb0b6023e3(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/92a999d1963eed0df666284e20055136ceabd12f(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/b16bb373988da3ceb0308381634117e18b6ec60d(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

https://git.kernel.org/stable/c/e97222b785e70e8973281666d709baad6523d8af(416baaa9-dc9f-4396-8d5f-8c081fb06d67)

Correlacoes IOC

Sem correlacoes registradas

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