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Improper Input Validation Affecting kernel-rt-modules-extra 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
    0.38% (74th percentile)

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  • Snyk ID SNYK-CENTOS8-KERNELRTMODULESEXTRA-2091631
  • published 26 Jul 2021
  • disclosed 13 Jan 2021
Report a new vulnerability Found a mistake?

Introduced: 13 Jan 2021

CVE-2020-28374 Open this link in a new tab
CWE-20 Open this link in a new tab

How to fix?

Upgrade Centos:8 kernel-rt-modules-extra 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-modules-extra package and not the kernel-rt-modules-extra 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

version 3.1
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NVD

8.1 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    High
  • Availability (A)
    None
Expand this section

Red Hat

8.1 high
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SUSE

8.1 high