Directory Traversal Affecting kernel package, versions <0:4.14.219-119.340.amzn1


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.38% (74th percentile)

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  • Snyk IDSNYK-AMZN201803-KERNEL-1725148
  • published27 Sept 2021
  • disclosed13 Jan 2021

Introduced: 13 Jan 2021

CVE-2020-28374  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 kernel to version 0:4.14.219-119.340.amzn1 or higher.
This issue was patched in ALAS-2021-1480.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 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