CVE-2021-47086 Affecting kernel-zfcpdump package, versions <5.14.21-150500.55.73.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-SLES155-KERNELZFCPDUMP-7694513
  • published17 Aug 2024
  • disclosed16 Aug 2024

Introduced: 16 Aug 2024

CVE-2021-47086  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 kernel-zfcpdump to version 5.14.21-150500.55.73.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-zfcpdump package and not the kernel-zfcpdump package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

phonet/pep: refuse to enable an unbound pipe

This ioctl() implicitly assumed that the socket was already bound to a valid local socket name, i.e. Phonet object. If the socket was not bound, two separate problems would occur:

  1. We'd send an pipe enablement request with an invalid source object.
  2. Later socket calls could BUG on the socket unexpectedly being connected yet not bound to a valid object.

CVSS Scores

version 3.1