Improper Input Validation Affecting kernel-rt-devel package, versions <0:4.18.0-240.22.1.rt7.77.el8_3


Severity

Recommended
0.0
high
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.27% (68th percentile)

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  • Snyk IDSNYK-CENTOS8-KERNELRTDEVEL-2092076
  • published26 Jul 2021
  • disclosed13 Jan 2021

Introduced: 13 Jan 2021

CVE-2020-28374  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Centos:8 kernel-rt-devel to version 0:4.18.0-240.22.1.rt7.77.el8_3 or higher.

NVD Description

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

In drivers/target/target_core_xcopy.c in the Linux kernel before 5.10.7, insufficient identifier checking in the LIO SCSI target code can be used by remote attackers to read or write files via directory traversal in an XCOPY request, aka CID-2896c93811e3. For example, an attack can occur over a network if the attacker has access to one iSCSI LUN. The attacker gains control over file access because I/O operations are proxied via an attacker-selected backstore.

References

CVSS Scores

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