5.5

CVE-2022-49561

netfilter: conntrack: re-fetch conntrack after insertion

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.7 < 4.14.282
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.246
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.197
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.120
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.45
Linux ≫ Linux Kernel Version >= 5.16 < 5.17.13
Linux ≫ Linux Kernel Version >= 5.18 < 5.18.2
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.28% 0.194
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
https://git.kernel.org/stable/c/01989d7eebb61c99bd4b88ebc8e261bd2f02caed
Patch
https://git.kernel.org/stable/c/04e4a11dc723c52db7a36dc58f0d69ce6426f8f0
Patch
https://git.kernel.org/stable/c/04f9e9104c969d8ce10a4a43634f641ed082092d
Patch
https://git.kernel.org/stable/c/56b14ecec97f39118bf85c9ac2438c5a949509ed
Patch
https://git.kernel.org/stable/c/91a36ec160ec1a0c8f5352b772dffcbb0b6023e3
Patch
https://git.kernel.org/stable/c/92a999d1963eed0df666284e20055136ceabd12f
Patch
https://git.kernel.org/stable/c/b16bb373988da3ceb0308381634117e18b6ec60d
Patch
https://git.kernel.org/stable/c/e97222b785e70e8973281666d709baad6523d8af
Patch