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Review reviewHigh

CVE-2023-52433

Linux Linux, ontap tools, linux kernel

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_rbtree: skip sync GC for new elements in this transaction New elements in this transaction might expired before such transaction ends. Skip sync GC for such elements otherwise commit path might walk over an already released object. Once transaction is finished, async GC will collect such expired element.

CVSS
7.8
EPSS
0.25%
16.6% percentile
CISA KEV
Not listed
Published
2024.02.20
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.25%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_set_rbtree: skip sync GC for new elements in this transaction New elements in this transaction might expired before such transaction ends. Skip sync GC for such elements otherwise commit path might walk over an already released object. Once transaction is finished, async GC will collect such expired element.

Affected product and versions

Product
Linux Linux, ontap tools, linux kernel
Affected versions
>= cb4d00b563675ba8ff6ef94b077f58d816f68ba3 < 9db9feb841f7449772f9393c16b9ef4536d8c127, >= c357648929c8dff891502349769aafb8f0452bc2 < 03caf75da1059f0460666c826e9f50e13dfd0017, >= 146c76866795553dbc19998f36718d7986ad302b < c323ed65f66e5387ee0a73452118d49f1dae81b8, >= 479a2cf5259347d6a1f658b0f791d27a34908e91 < 9af7dfb3c9d7985172a240f85e684c5cd33e29ce, >= df650d6a4bf47248261b61ef6b174d7c54034d15 < 9a8c544158f68f656d1734eb5ba00c4f817b76b1, >= f6c383b8c31a93752a52697f8430a71dcbc46adf < e3213ff99a355cda811b41e8dbb3472d13167a3a, >= f6c383b8c31a93752a52697f8430a71dcbc46adf < 2ee52ae94baabf7ee09cf2a8d854b990dac5d0e4, >= e4d71d6a9c7db93f7bf20c3a0f0659d63d7de681, >= 6.4.11 < 6.5, >= 6.5, 9, 10, >= 6.5 < 6.5.4
Fixed versions
6.5.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, ontap tools, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-273
CVE-2023-52433 — Linux Linux, ontap tools, linux kernel | SECUFOCUS NOW