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CVE PROGRAM SOURCE RECORD9.8 Critical

CVE-2022-49561

netfilter: conntrack: re-fetch conntrack after insertion

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 71d8c47fc653711c41bc3282e5b0e605b3727956 to < e97222b785e70e8973281666d709baad6523d8afaffected
  • 71d8c47fc653711c41bc3282e5b0e605b3727956 to < 92a999d1963eed0df666284e20055136ceabd12faffected
  • 71d8c47fc653711c41bc3282e5b0e605b3727956 to < b16bb373988da3ceb0308381634117e18b6ec60daffected
  • 71d8c47fc653711c41bc3282e5b0e605b3727956 to < 91a36ec160ec1a0c8f5352b772dffcbb0b6023e3affected
  • 71d8c47fc653711c41bc3282e5b0e605b3727956 to < 01989d7eebb61c99bd4b88ebc8e261bd2f02caedaffected
  • 71d8c47fc653711c41bc3282e5b0e605b3727956 to < 04f9e9104c969d8ce10a4a43634f641ed082092daffected
  • 71d8c47fc653711c41bc3282e5b0e605b3727956 to < 04e4a11dc723c52db7a36dc58f0d69ce6426f8f0affected
  • 71d8c47fc653711c41bc3282e5b0e605b3727956 to < 56b14ecec97f39118bf85c9ac2438c5a949509edaffected

Linux Linux

Default version status: affected

  • 4.7affected
  • 0 to < 4.7unaffected
  • 4.14.282 to ≤ 4.14.*unaffected
  • 4.19.246 to ≤ 4.19.*unaffected
  • 5.4.197 to ≤ 5.4.*unaffected
  • 5.10.120 to ≤ 5.10.*unaffected
  • 5.15.45 to ≤ 5.15.*unaffected
  • 5.17.13 to ≤ 5.17.*unaffected
  • 5.18.2 to ≤ 5.18.*unaffected
  • 5.19 to ≤ *unaffected

References