Allocation of Resources Without Limits or Throttling Affecting perf package, versions <0:5.14.0-162.12.1.el9_1


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.16% (54th percentile)

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  • Snyk IDSNYK-ORACLE9-PERF-3248268
  • published26 Jan 2023
  • disclosed4 Nov 2022

Introduced: 4 Nov 2022

CVE-2022-43945  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Oracle:9 perf to version 0:5.14.0-162.12.1.el9_1 or higher.
This issue was patched in ELSA-2023-0334.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

The Linux kernel NFSD implementation prior to versions 5.19.17 and 6.0.2 are vulnerable to buffer overflow. NFSD tracks the number of pages held by each NFSD thread by combining the receive and send buffers of a remote procedure call (RPC) into a single array of pages. A client can force the send buffer to shrink by sending an RPC message over TCP with garbage data added at the end of the message. The RPC message with garbage data is still correctly formed according to the specification and is passed forward to handlers. Vulnerable code in NFSD is not expecting the oversized request and writes beyond the allocated buffer space. CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS Scores

version 3.1