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CVE-2023-53431 Affecting python3-perf package, versions *

Severity

 Recommended
low

Based on CentOS security rating.

Threat Intelligence

EPSS
0.04% (10th percentile)

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  • Snyk IDSNYK-CENTOS8-PYTHON3PERF-12962327
  • published19 Sept 2025
  • disclosed18 Sept 2025
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Introduced: 18 Sep 2025

CVE-2023-53431  (opens in a new tab)

How to fix?

There is no fixed version for Centos:8 python3-perf.

NVD Description

Note: Versions mentioned in the description apply only to the upstream python3-perf package and not the python3-perf package as distributed by Centos. See How to fix? for Centos:8 relevant fixed versions and status.

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

scsi: ses: Handle enclosure with just a primary component gracefully

This reverts commit 3fe97ff3d949 ("scsi: ses: Don't attach if enclosure has no components") and introduces proper handling of case where there are no detected secondary components, but primary component (enumerated in num_enclosures) does exist. That fix was originally proposed by Ding Hui <dinghui@sangfor.com.cn>.

Completely ignoring devices that have one primary enclosure and no secondary one results in ses_intf_add() bailing completely

scsi 2:0:0:254: enclosure has no enumerated components
    scsi 2:0:0:254: Failed to bind enclosure -12ven in valid configurations such

even on valid configurations with 1 primary and 0 secondary enclosures as below:

# sg_ses /dev/sg0
  3PARdata  SES               3321
Supported diagnostic pages:
  Supported Diagnostic Pages [sdp] [0x0]
  Configuration (SES) [cf] [0x1]
  Short Enclosure Status (SES) [ses] [0x8]
# sg_ses -p cf /dev/sg0
  3PARdata  SES               3321
Configuration diagnostic page:
  number of secondary subenclosures: 0
  generation code: 0x0
  enclosure descriptor list
    Subenclosure identifier: 0 [primary]
      relative ES process id: 0, number of ES processes: 1
      number of type descriptor headers: 1
      enclosure logical identifier (hex): 20000002ac02068d
      enclosure vendor: 3PARdata  product: VV                rev: 3321
  type descriptor header and text list
    Element type: Unspecified, subenclosure id: 0
      number of possible elements: 1

The changelog for the original fix follows

===== We can get a crash when disconnecting the iSCSI session, the call trace like this:

[ffff00002a00fb70] kfree at ffff00000830e224 [ffff00002a00fba0] ses_intf_remove at ffff000001f200e4 [ffff00002a00fbd0] device_del at ffff0000086b6a98 [ffff00002a00fc50] device_unregister at ffff0000086b6d58 [ffff00002a00fc70] __scsi_remove_device at ffff00000870608c [ffff00002a00fca0] scsi_remove_device at ffff000008706134 [ffff00002a00fcc0] __scsi_remove_target at ffff0000087062e4 [ffff00002a00fd10] scsi_remove_target at ffff0000087064c0 [ffff00002a00fd70] __iscsi_unbind_session at ffff000001c872c4 [ffff00002a00fdb0] process_one_work at ffff00000810f35c [ffff00002a00fe00] worker_thread at ffff00000810f648 [ffff00002a00fe70] kthread at ffff000008116e98

In ses_intf_add, components count could be 0, and kcalloc 0 size scomp, but not saved in edev->component[i].scratch

In this situation, edev->component[0].scratch is an invalid pointer, when kfree it in ses_intf_remove_enclosure, a crash like above would happen The call trace also could be other random cases when kfree cannot catch the invalid pointer

We should not use edev->component[] array when the components count is 0 We also need check index when use edev->component[] array in ses_enclosure_data_process

References

CVSS Base Scores

version 3.1